Beijing Tianjin Mining Machinery Co, Ltd
Publish: 2021-04-17 15:56:37
1. You'd better contact yourself
they are all good enterprises
the following is for reference only<
TEDA, one of the world's top 500 enterprises, has attracted a large number of multinational enterprises representing the world's most advanced proctive forces. As of March 2007, a total of 59 multinational companies from 10 foreign countries and regions have invested in 129 enterprises in TEDA<
enterprise name
Toyota Motor Co., Ltd.
Mitsubishi Corporation
Mitsui & Co., Ltd.
Itochu Corporation
Sumitomo Corporation
Marubeni Corporation
Honda Motor Co, Ltd.
Matsushita Electric Instrial Co., Ltd.
nissho Iwai, a Japanese company
Canon Inc.
Daiei, Inc.
Denso Corporation
Toyota Tsusho
Aisin Seiki, a Japanese company
Sanyo Electric Co, Ltd.
Idemitsu Kosan
Bridgestone
Sekisui
Nippon Yusen
NEC
Mitsubishi Chemical
Kyocera
nimbus All medicine rimil
Nomura Securities
Kawasaki heavy instries
IBM
International Business Machines Corporation
Exxon Mobil
Altria group
Motorola, Inc.
PepsiCo, Inc.
Honeywell, Inc.
the Coca Cola Company
Emerson Electric Co.
Halliburton Co.
Deere & Company
Tyco international
Eastman Kodak
United Technologies
Emerson Electric
chevron
At & T
Volkswagen AG, Germany
Bosch Robert Bosch
continental
Samsung Electronics Co., Ltd.
Hyundai Motor Company
LG International Co.
Pohang Iron & Steel Co, Ltd.
Akzo Nobel
Dutch trading SHV holdings
Flextronics International Ltd.
Alcatel Co.
Lafarge group
Schneider Electric
HSBC Holding
GlaxoSmithKline, Inc.
Nestl é SA
ASI bramble farry ABB Group
Hon Hai Precision Foxconn
list of top 100 enterprises in TEDA in 2006
ranking enterprise name ranking enterprise name
1 Motorola (China) Electronics Co., Ltd. 51 Tianjin Xingyun (Group) Co., Ltd.
2 Tianjin FAW Toyota Motor Co., Ltd. 52 sew instrial recer (Tianjin) Co., Ltd
3 Tianjin Samsung Communication Technology Co., Ltd. 53 Meike international furniture (Tianjin) Manufacturing Co., Ltd.
4 Tianjin Jinya Electronics Co., Ltd. 54 Tianjin Donghai physicochemical Auto Parts Co., Ltd.
5 Freescale Semiconctor (China) Co., Ltd. 55 feibida electronic components (Tianjin) Co., Ltd.
6 Tianjin Samsung electronic display Co., Ltd. Tianjin TEDA Investment Control Co., Ltd Tianjin Tongguang Samsung Electronics Co., Ltd. 57 general semiconctor (China) Co., Ltd.
8 Tianjin Samsung Electronics Co., Ltd. 58 Tianjin Yamaha Electronic Instrument Co., Ltd.
9 Tianjin Samsung optoelectronics Co., Ltd. 59 Tianjin Shuangye xiezhan Machinery Co., Ltd.
10 Tianjin TEDA Construction Group Co., Ltd. 60 Bridgestone (Tianjin) Tire Co., Ltd.
11 Tianjin Samsung vision Co., Ltd.
12 sew transmission equipment (Tianjin) Co., Ltd.
62 Agricultural Bank of China Tianjin Economic and Technological Development Zone Branch
13 Samsung high tech motor (Tianjin) Co., Ltd.
63 Tianjin Sanyo communication equipment Co., Ltd.
14 bank of China Co., Ltd Tianjin Binhai Branch 64 Tianjin Jun'an coal coke chemical Co., Ltd.
15 Tianjin Yingtai Automobile Accessories Co., Ltd.
65 Tianjin dingzheng printing packaging material Co., Ltd.
16 Tianjin Taida Group Co., Ltd.
66 Dacheng Wanda (Tianjin) Co., Ltd.
17 Tianjin Jinqiao Welding Material Group Co., Ltd.
67 Zhengda Group (Tianjin) Instrial Co., Ltd.
18 Jun'an (Tianjin) Instrial Co., Ltd Ltd.
68 Butler (Tianjin) Co., Ltd.
19 Tianjin Samsung vision Mobile Co., Ltd.
20 Tianjin Electronic Equipment Co., Ltd.
70 Tianjin unified instry Co., Ltd.
21 ROM semiconctor (China) Co., Ltd.
71 Kyocera (Tianjin) Trading Co., Ltd.
22 Yaguang Nepro precision injection molding (Tianjin) Co., Ltd.
72 Tianjin Nanqiao Oil Co., Ltd.
23 Tianjin Dingjin Food Co., Ltd.
73 Tianjin Zhengda feed Technology Co., Ltd.
24 PPG coating (Tianjin) Co., Ltd.
74 Tianjin steel pipe engineering equipment and materials Co., Ltd.
25 Tianjin CIMC Beiyang container Co., Ltd.
75 Tianjin Alps Electronics Co., Ltd.
26 Schneider Electric low voltage (Tianjin) Co., Ltd.
76 Tianjin haoan mining Co., Ltd.
27 Tianjin Samsung Motor Co., Ltd.
77 Samsung Aishang (Tianjin) International Logistics Co., Ltd.
28 novozyme (China) Biotechnology Co., Ltd.
78 Tianjin Toyota Logistics Co., Ltd.
29 Aisin (Tianjin) body Parts Co., Ltd.
79 modern Gaoxin Electronics (Tianjin) Co., Ltd.
30 Tianjin Binhai Development Investment Holding Co., Ltd 80 Tianjin COSCO Guanxi coating Chemical Co., Ltd.
31 China Construction Bank Tianjin Economic and Technological Development Zone Branch 81 GlaxoSmithKline (Tianjin) Co., Ltd.
32 Herbie (Tianjin) Electronics Co., Ltd.
82 Honeywell (Tianjin) Co., Ltd.
33 instrial and Commercial Bank of China Tianjin Economic and Technological Development Zone Branch 83 Tianjin Aksu Nobel peroxide Co., Ltd.
34 Tianjin Jinbin Development Co., Ltd. 84 jpower Technology (Tianjin) Co., Ltd.
35 Novo Nordisk (China) Pharmaceutical Co., Ltd. 85 Sidis (Tianjin) Electronics Co., Ltd.
36 Tianjin Development Zone Fulin Development Co., Ltd. 86 Jinliang (China) Co., Ltd.
37 spiker cooling technology (Tianjin) Co., Ltd. 87 kelixin Electronics (Tianjin) Co., Ltd.
36 />38 AkzoNobel coatings (Tianjin) Co., Ltd. 88 Foxconn (Tianjin) Precision Instry Co., Ltd.
39 Agricultural Bank of China Tianjin Tanggu Branch 89 Metso mining machinery (Tianjin) Co., Ltd.
40 Beihai grain and oil instry (Tianjin) Co., Ltd. 90 Tianjin 712 communication Broadcasting Co., Ltd.
41 Tianjin Coca Cola Beverage Co., Ltd. 91 Tianjin Economic and Technological Development Co., Ltd District mechanical and electrical equipment company
42 civil engineering company of China Construction Sixth Engineering Bureau 92 Tianjin Sanhuan Lexi new materials Co., Ltd.
43 Tianjin Fuji Tongtian Electronics Co., Ltd.
93 Tianjin Wantong fashion Property Co., Ltd.
44 Tianjin Jinzhu automobile wiring harness Co., Ltd.
44 Tianjin Aida automatic transmission Co., Ltd.
45 Tianjin lejin Dagu Chemical Co., Ltd.
95 days Jinlitong carbon procts Co., Ltd.
46 Tianjin YAZAKI Auto Parts Co., Ltd.
96 Tianjin Development Zone Jinpeng plastic profile Manufacturing Co., Ltd.
47 John deer tiantuo Co., Ltd.
97 Tianjin Stanley Electric Co., Ltd.
48 Tianjin rolling three logistics Co., Ltd.
49 Tianjin TEDA Jinlian Electric Power Co., Ltd.
99 Tianjin Binhai Energy Development Co., Ltd.
50 Tianjin World supermarket chain Co., Ltd. 100 Tianjin Meihe Instrial Development Co., Ltd.
you can dial 25201114 to check the number of the above companies
they are all good enterprises
the following is for reference only<
TEDA, one of the world's top 500 enterprises, has attracted a large number of multinational enterprises representing the world's most advanced proctive forces. As of March 2007, a total of 59 multinational companies from 10 foreign countries and regions have invested in 129 enterprises in TEDA<
enterprise name
Toyota Motor Co., Ltd.
Mitsubishi Corporation
Mitsui & Co., Ltd.
Itochu Corporation
Sumitomo Corporation
Marubeni Corporation
Honda Motor Co, Ltd.
Matsushita Electric Instrial Co., Ltd.
nissho Iwai, a Japanese company
Canon Inc.
Daiei, Inc.
Denso Corporation
Toyota Tsusho
Aisin Seiki, a Japanese company
Sanyo Electric Co, Ltd.
Idemitsu Kosan
Bridgestone
Sekisui
Nippon Yusen
NEC
Mitsubishi Chemical
Kyocera
nimbus All medicine rimil
Nomura Securities
Kawasaki heavy instries
IBM
International Business Machines Corporation
Exxon Mobil
Altria group
Motorola, Inc.
PepsiCo, Inc.
Honeywell, Inc.
the Coca Cola Company
Emerson Electric Co.
Halliburton Co.
Deere & Company
Tyco international
Eastman Kodak
United Technologies
Emerson Electric
chevron
At & T
Volkswagen AG, Germany
Bosch Robert Bosch
continental
Samsung Electronics Co., Ltd.
Hyundai Motor Company
LG International Co.
Pohang Iron & Steel Co, Ltd.
Akzo Nobel
Dutch trading SHV holdings
Flextronics International Ltd.
Alcatel Co.
Lafarge group
Schneider Electric
HSBC Holding
GlaxoSmithKline, Inc.
Nestl é SA
ASI bramble farry ABB Group
Hon Hai Precision Foxconn
list of top 100 enterprises in TEDA in 2006
ranking enterprise name ranking enterprise name
1 Motorola (China) Electronics Co., Ltd. 51 Tianjin Xingyun (Group) Co., Ltd.
2 Tianjin FAW Toyota Motor Co., Ltd. 52 sew instrial recer (Tianjin) Co., Ltd
3 Tianjin Samsung Communication Technology Co., Ltd. 53 Meike international furniture (Tianjin) Manufacturing Co., Ltd.
4 Tianjin Jinya Electronics Co., Ltd. 54 Tianjin Donghai physicochemical Auto Parts Co., Ltd.
5 Freescale Semiconctor (China) Co., Ltd. 55 feibida electronic components (Tianjin) Co., Ltd.
6 Tianjin Samsung electronic display Co., Ltd. Tianjin TEDA Investment Control Co., Ltd Tianjin Tongguang Samsung Electronics Co., Ltd. 57 general semiconctor (China) Co., Ltd.
8 Tianjin Samsung Electronics Co., Ltd. 58 Tianjin Yamaha Electronic Instrument Co., Ltd.
9 Tianjin Samsung optoelectronics Co., Ltd. 59 Tianjin Shuangye xiezhan Machinery Co., Ltd.
10 Tianjin TEDA Construction Group Co., Ltd. 60 Bridgestone (Tianjin) Tire Co., Ltd.
11 Tianjin Samsung vision Co., Ltd.
12 sew transmission equipment (Tianjin) Co., Ltd.
62 Agricultural Bank of China Tianjin Economic and Technological Development Zone Branch
13 Samsung high tech motor (Tianjin) Co., Ltd.
63 Tianjin Sanyo communication equipment Co., Ltd.
14 bank of China Co., Ltd Tianjin Binhai Branch 64 Tianjin Jun'an coal coke chemical Co., Ltd.
15 Tianjin Yingtai Automobile Accessories Co., Ltd.
65 Tianjin dingzheng printing packaging material Co., Ltd.
16 Tianjin Taida Group Co., Ltd.
66 Dacheng Wanda (Tianjin) Co., Ltd.
17 Tianjin Jinqiao Welding Material Group Co., Ltd.
67 Zhengda Group (Tianjin) Instrial Co., Ltd.
18 Jun'an (Tianjin) Instrial Co., Ltd Ltd.
68 Butler (Tianjin) Co., Ltd.
19 Tianjin Samsung vision Mobile Co., Ltd.
20 Tianjin Electronic Equipment Co., Ltd.
70 Tianjin unified instry Co., Ltd.
21 ROM semiconctor (China) Co., Ltd.
71 Kyocera (Tianjin) Trading Co., Ltd.
22 Yaguang Nepro precision injection molding (Tianjin) Co., Ltd.
72 Tianjin Nanqiao Oil Co., Ltd.
23 Tianjin Dingjin Food Co., Ltd.
73 Tianjin Zhengda feed Technology Co., Ltd.
24 PPG coating (Tianjin) Co., Ltd.
74 Tianjin steel pipe engineering equipment and materials Co., Ltd.
25 Tianjin CIMC Beiyang container Co., Ltd.
75 Tianjin Alps Electronics Co., Ltd.
26 Schneider Electric low voltage (Tianjin) Co., Ltd.
76 Tianjin haoan mining Co., Ltd.
27 Tianjin Samsung Motor Co., Ltd.
77 Samsung Aishang (Tianjin) International Logistics Co., Ltd.
28 novozyme (China) Biotechnology Co., Ltd.
78 Tianjin Toyota Logistics Co., Ltd.
29 Aisin (Tianjin) body Parts Co., Ltd.
79 modern Gaoxin Electronics (Tianjin) Co., Ltd.
30 Tianjin Binhai Development Investment Holding Co., Ltd 80 Tianjin COSCO Guanxi coating Chemical Co., Ltd.
31 China Construction Bank Tianjin Economic and Technological Development Zone Branch 81 GlaxoSmithKline (Tianjin) Co., Ltd.
32 Herbie (Tianjin) Electronics Co., Ltd.
82 Honeywell (Tianjin) Co., Ltd.
33 instrial and Commercial Bank of China Tianjin Economic and Technological Development Zone Branch 83 Tianjin Aksu Nobel peroxide Co., Ltd.
34 Tianjin Jinbin Development Co., Ltd. 84 jpower Technology (Tianjin) Co., Ltd.
35 Novo Nordisk (China) Pharmaceutical Co., Ltd. 85 Sidis (Tianjin) Electronics Co., Ltd.
36 Tianjin Development Zone Fulin Development Co., Ltd. 86 Jinliang (China) Co., Ltd.
37 spiker cooling technology (Tianjin) Co., Ltd. 87 kelixin Electronics (Tianjin) Co., Ltd.
36 />38 AkzoNobel coatings (Tianjin) Co., Ltd. 88 Foxconn (Tianjin) Precision Instry Co., Ltd.
39 Agricultural Bank of China Tianjin Tanggu Branch 89 Metso mining machinery (Tianjin) Co., Ltd.
40 Beihai grain and oil instry (Tianjin) Co., Ltd. 90 Tianjin 712 communication Broadcasting Co., Ltd.
41 Tianjin Coca Cola Beverage Co., Ltd. 91 Tianjin Economic and Technological Development Co., Ltd District mechanical and electrical equipment company
42 civil engineering company of China Construction Sixth Engineering Bureau 92 Tianjin Sanhuan Lexi new materials Co., Ltd.
43 Tianjin Fuji Tongtian Electronics Co., Ltd.
93 Tianjin Wantong fashion Property Co., Ltd.
44 Tianjin Jinzhu automobile wiring harness Co., Ltd.
44 Tianjin Aida automatic transmission Co., Ltd.
45 Tianjin lejin Dagu Chemical Co., Ltd.
95 days Jinlitong carbon procts Co., Ltd.
46 Tianjin YAZAKI Auto Parts Co., Ltd.
96 Tianjin Development Zone Jinpeng plastic profile Manufacturing Co., Ltd.
47 John deer tiantuo Co., Ltd.
97 Tianjin Stanley Electric Co., Ltd.
48 Tianjin rolling three logistics Co., Ltd.
49 Tianjin TEDA Jinlian Electric Power Co., Ltd.
99 Tianjin Binhai Energy Development Co., Ltd.
50 Tianjin World supermarket chain Co., Ltd. 100 Tianjin Meihe Instrial Development Co., Ltd.
you can dial 25201114 to check the number of the above companies
2. With the rise of social economy, Internet red economy, wechat business and we media, social e-commerce has also been born. Especially in the past two years, social e-commerce has been very popular, with many competitors in the front and many in the back. Instead, the vertical e-commerce companies like vipshop were caught unprepared. Pinoo successfully squeezed vipshop out of the top three e-commerce companies in China, and traditional e-commerce giants also entered social e-commerce
in a broad sense, social e-commerce includes wechat business and wechat mall, while in a narrow sense, social e-commerce refers to social functions such as social interaction, word-of-mouth, interaction and sharing. Generally speaking, social e-commerce can be divided into three types:
shopping guide type social e-commerce: for example, gathering
content type social e-commerce: for example, little red book
platform type social e-commerce: for example, pinoo
the popularity of social e-commerce is a trend in the new retail era, but in the final analysis, social e-commerce is just a channel to expand e-commerce, and it is still e-commerce, Proct quality, service, supply chain and consumption experience are also eternal topics
in today's mobile Internet era, the traffic entrance relies on we media platform, QQ space, microblog, wechat circle of friends and other platforms with social attributes. Remember, it's a platform with "social attributes.". With the social attribute, two people you don't know can be gathered together through the same interests, forming a community
community building is based on trust and shared interests. Based on the same proct service and trust and other reasons. In order to run a community well, we need to increase the length, frequency and dimension of community members' links. Only in this way can fission be proced and more flow be brought. This is also the pursuit of low-cost, high traffic
with the depletion of traffic dividends and the vigorous promotion of private traffic, the new social retail platform undoubtedly caters to this trend. The emergence of new social retail also makes many enterprises want to seize this opportunity. So how to do a good job in the new retail mode of store + social? This also needs specific circumstances, specific instries and specific analysis. There must be some differences between selling clothes and selling seafood. The unit price of customers, the frequency of purchase, and the demand for just procts will all have an impact. We need to know your situation first.
in a broad sense, social e-commerce includes wechat business and wechat mall, while in a narrow sense, social e-commerce refers to social functions such as social interaction, word-of-mouth, interaction and sharing. Generally speaking, social e-commerce can be divided into three types:
shopping guide type social e-commerce: for example, gathering
content type social e-commerce: for example, little red book
platform type social e-commerce: for example, pinoo
the popularity of social e-commerce is a trend in the new retail era, but in the final analysis, social e-commerce is just a channel to expand e-commerce, and it is still e-commerce, Proct quality, service, supply chain and consumption experience are also eternal topics
in today's mobile Internet era, the traffic entrance relies on we media platform, QQ space, microblog, wechat circle of friends and other platforms with social attributes. Remember, it's a platform with "social attributes.". With the social attribute, two people you don't know can be gathered together through the same interests, forming a community
community building is based on trust and shared interests. Based on the same proct service and trust and other reasons. In order to run a community well, we need to increase the length, frequency and dimension of community members' links. Only in this way can fission be proced and more flow be brought. This is also the pursuit of low-cost, high traffic
with the depletion of traffic dividends and the vigorous promotion of private traffic, the new social retail platform undoubtedly caters to this trend. The emergence of new social retail also makes many enterprises want to seize this opportunity. So how to do a good job in the new retail mode of store + social? This also needs specific circumstances, specific instries and specific analysis. There must be some differences between selling clothes and selling seafood. The unit price of customers, the frequency of purchase, and the demand for just procts will all have an impact. We need to know your situation first.
3. There are many heavy instry enterprises in China. First of all, we need to find out which instries are included in heavy instry. Generally, heavy instry includes energy, raw materials, manufacturing, etc.
Xugong Group
Liugong group
Northern instry group
Changchun Bus Group (making trains, motor cars, subway cars)
Nanfang bus group (making trains, motor cars, subway cars)
iron and steel enterprises are typical heavy instries, The ranking of domestic enterprises is as follows:
No.1 Shanghai Baosteel Group Shanghai Iron and Steel Co., Ltd.
No.2 Shougang Group Beijing Iron and steel state owned 61900000
No.3 Anshan Iron and Steel Group Liaoning iron and steel state owned 50142107
No.4 Wuhan Iron and steel group Hubei iron and steel state owned 40126080
No.5 Jiangsu Shagang Group Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 31074562
6th Laiwu Iron and Steel Group Shandong Iron and Steel Co., Ltd. 30102773
7th Taiyuan Iron and steel (Group) Co., Ltd. Shanxi iron and steel state owned 29016920
8th Jinan Iron and Steel Group Corporation Shandong iron and steel state owned 27396350
9th Maanshan Iron and Steel Co., Ltd. Anhui iron and Steel Co., Ltd 838574
No.10 Handan Iron and Steel Group Co., Ltd. Hebei Iron and steel state owned 26169112
No.11 Panhua Iron and steel (Group) Co., Ltd. Sichuan iron and steel state owned 25294203
No.12 Tangshan Iron and Steel Group Co., Ltd. Hebei Iron and steel state owned 25124553
No.13 Benxi Iron and steel (Group) Co., Ltd. Liaoning iron and steel state owned 23515050
No The 14th Nanjing Iron and Steel Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 22687670
the 15th Beitai Iron and steel (Group) Co., Ltd. Liaoning iron and steel state owned 22091340
the 16th Hangzhou Iron and Steel Group Co., Ltd. Zhejiang iron and Steel Co., Ltd. 21878372
the 17th Baotou Iron and Steel Group Inner Mongolia Autonomous Region iron and steel state owned 21534680
the 18th Tianjin Tiantie Metallurgical Group Co., Ltd Tianjin Iron and Steel Co., Ltd. 20343538
the 19th Qing Iron and steel Holding Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 19955700
the 20th Jiangsu Huaxi Group Co., Ltd. Jiangsu iron and steel collective 19784310
the 21st Anyang Iron and Steel Group Co., Ltd. Henan iron and steel state owned 16371280
the 22nd Jiuquan Iron and steel (Group) Co., Ltd Gansu iron and Steel Co., Ltd. 13139591
the 23rd Tianjin Steel Tube Group Co., Ltd. Tianjin Iron and steel state owned 12535361
the 24th Xinyu Iron and Steel Co., Ltd. Jiangxi iron and Steel Co., Ltd. 11804952
the 25th Guangxi Liuzhou Iron and Steel Group Co., Ltd. Guangxi Zhuang Autonomous Region iron and steel state owned 11460052
the 26th Tangshan Guofeng iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd Hong Kong, Macao and Taiwan 11325290
27th Guangdong Shaoguan Iron and Steel Group Co., Ltd. Guangdong iron and Steel Co., Ltd. 10862722
28th Lianyuan Iron and Steel Group Co., Ltd. Hunan Iron and steel state owned 10836928
29th Chongqing Iron and steel (Group) Co., Ltd. Chongqing Iron and steel Hong Kong, Macao and Taiwan 10744615
30th Jiangsu Yonggang Group Co., Ltd. Jiangsu iron and Steel Co., Ltd Ltd. 10632620
the 31st Xuanhua Iron and Steel Group Co., Ltd. Hebei Iron and Steel Co., Ltd. 10612764
the 32nd Tianjin Tiangang Group Co., Ltd. Tianjin Iron and steel state owned 10111714
the 33rd Jiangyin Xingcheng Special Iron and Steel Co., Ltd. Jiangsu iron and steel Hong Kong, Macao and Taiwan 10023059
the 34th Shanghai Meishan Iron and Steel Co., Ltd. Jiangsu iron and Steel Co., Ltd 82063
the 35th Guangzhou Iron and Steel Co., Ltd. Guangdong iron and steel Hong Kong Macao Taiwan 9618567
the 36th Xiangtan Iron and Steel Group Co., Ltd. Hunan Iron and steel state owned 9583760
the 37th Hebei Jinxi iron and Steel Co., Ltd. Hebei Iron and steel foreign investment 9232034
the 38th Xinxing Cast Pipe Co., Ltd. Hebei Iron and Steel Co., Ltd. 8800566
the 39th East North Special Steel Group Co., Ltd. Liaoning iron and Steel Co., Ltd. 8563510
40th Fujian Sansteel (Group) Co., Ltd. Fujian iron and steel state owned 7738510
41st Chengde Iron and Steel Group Co., Ltd. Hebei Iron and Steel Co., Ltd. 7218349
42nd Pingxiang Iron and Steel Co., Ltd. Jiangxi iron and Steel Co., Ltd. 7035780
43rd Tonghua Iron and Steel Co., Ltd Jilin iron and Steel Co., Ltd. 6701140
the 44th Shanxi Haixin iron and Steel Group Co., Ltd. Shanxi iron and Steel Co., Ltd. 6614250
the 45th Xinjiang Bayi Iron and Steel Co., Ltd. Xinjiang Uygur Autonomous Region iron and Steel Co., Ltd. 6537792
the 46th Nanjing Iron and Steel Group Jiangsu Huaihe iron and Steel Co., Ltd. Jiangsu iron and Steel Co., Ltd. 6534242
the 47th Sichuan Chuanwei iron and Steel Co., Ltd Group Co., Ltd. Sichuan iron and Steel Co., Ltd. 6484745
48th Xingtai Iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd. Hong Kong, Macao and Taiwan 6468070
49th Pangang Group Cheng Iron and Steel Co., Ltd. Sichuan iron and steel state owned 6467961
50th Lingyuan Iron and Steel Group Co., Ltd. Liaoning iron and steel state owned 6305544
51st Hubei Xinye Steel Co., Ltd Hubei steel joint venture 6180855
No.52 Nanchang Steel Co., Ltd Jiangxi Steel state owned 6104687
No.53 Shuicheng Steel (Group) Co., Ltd Guizhou Steel Co., Ltd 5891630
No.54 Wuyang Steel Co., Ltd Henan Steel Co., Ltd 5521179
No.55 Chang Steel Group Co., Ltd Shanxi steel state owned 549921 0
the 56th Tangshan Jianlong Instrial Co., Ltd. Hebei steel private 5098494
the 57th Jiangyin Xicheng Steel Co., Ltd. Jiangsu steel private 4259140
the 58th Tangshan ganglu Steel Co., Ltd. Hebei steel Hong Kong, Macao and Taiwan 4178576
the 59th Fushun Special Steel Co., Ltd. Liaoning steel Co., Ltd. 4070264
the 60th Rizhao steel Holding Co., Ltd Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 4061523
No. 61 Fushun new Fushun Iron and Steel Co., Ltd. Liaoning iron and steel state owned 3932953
No. 62 Jiangsu Suzhou iron and Steel Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 3682106
No. 63 Shaanxi Longmen Iron and steel (Group) Co., Ltd. Shaanxi iron and Steel Co., Ltd. 3667210
No. 64 Panhua Iron and Steel City Enterprise General Corporation Sichuan iron and Steel Group 3641570
65th Shandong Shiheng Special Steel Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 3586250
66th Xingtai Delong iron and Steel Instry Co., Ltd. Hebei Iron and Steel Co., Ltd. 3561691
67th Wuxi Xixing iron and Steel Co., Ltd. Jiangsu iron and Steel Group 3556545
68th Hebei Tangshan Banbidian iron and Steel Group Co., Ltd The 69th Henan Jiyuan Iron and Steel Group Co., Ltd. Henan iron and Steel Co., Ltd. 3456378
the 70th Shandong Taishan Iron and Steel Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 3431827
the 71st Hebei Luanhe Instrial Group Co., Ltd. Hebei Iron and Steel Co., Ltd. Hong Kong, Macao and Taiwan 3313278
the 72nd Jiangsu Tieben iron and Steel Co., Ltd. Jiangsu iron and steel private company 3229480 < br/ >The 73rd Xinjiang Bayi Steel Group Co., Ltd. Xinjiang Uygur Autonomous Region steel 3167583
the 74th Sichuan Dazhou Steel Group Co., Ltd. Sichuan Steel Co., Ltd. 3032952
the 75th Hebei Puyang Steel Co., Ltd. Hebei steel Hong Kong, Macao and Taiwan 3011742
the 76th Panhua Steel Group Sichuan Great Wall Special Steel Co., Ltd. Sichuan steel The 77th Jilin Jianlong iron and Steel Co., Ltd. Jilin iron and Steel Co., Ltd. 2906154
the 78th Shandong Shouguang Juneng Electric Power Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 2900196
the 79th Shanxi Yujin iron and Steel Co., Ltd. Shanxi iron and Steel Co., Ltd. 2778382
the 80th Jiangsu Xigang Group Co., Ltd. Jiangsu state owned iron and Steel Co., Ltd 2737418
No.81 Shanxi Zhongyang Steel Works Shanxi steel collective 2724175
No.82 Hengyang Steel Pipe Group Co., Ltd. Hunan steel state owned 2522365
No.83 Hengshui Jinghua Pipe Co., Ltd. Hebei Steel Co., Ltd. 2428682
No.84 Fujian San'an Steel Co., Ltd. Fujian steel joint venture 2404913
No.85 Hefei Steel Group Co., Ltd The 86th Wuhu Xinxing Cast Pipe Co., Ltd. Anhui iron and Steel Co., Ltd. 2368707
the 87th Tangshan Xingye Instry and Trade Co., Ltd. Hebei Iron and steel private company 2302543
the 88th Hebei Wenfeng iron and Steel Co., Ltd. Hebei Iron and steel joint venture 2209669
the 89th Jilin Ferroalloy Co., Ltd The 90th Xuzhou Iron and steel works Jiangsu iron and steel state owned 2179354
the 91st Xilin Iron and Steel Group Co., Ltd Heilongjiang iron and steel state owned 2176146
the 92nd Xining Special Steel Co., Ltd Qinghai iron and Steel Co., Ltd 2170409
the 93rd Jiangsu Xuanli group Co., Ltd Jiangsu iron and Steel Co., Ltd 2164466
the 94th Tangshan nitic steel works Hebei Iron and Steel Group 2125002
95th Hebei Dongsheng Group Co., Ltd. Hebei Iron and steel private 2116919
96th Hebei Xinjin iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd. 2110215
97th Tianjin Rongcheng United iron and Steel Group Co., Ltd. Tianjin iron and steel private 2099413
98th Tangshan Songting iron and Steel Co., Ltd Hebei Iron and Steel Co., Ltd. 2096612
No. 99 Lengshuijiang iron and steel works Hunan Iron and steel state owned 2058000
No. 100 Anyang Iron and Steel Group Xinyang iron and Steel Co., Ltd. Henan iron and steel state owned 2029812
2009 Top 100 Coal Enterprises
ranking enterprise name business income (10000 yuan)
1 Shenhua Group Co., Ltd. 14402329
2 Shanxi coal transportation and Marketing Group Co., Ltd. 9023941
3 Henan Coal Chemical Instry Group Co., Ltd. 8211530
4 Shanxi Coking Coal Group Co., Ltd. 7179795
5 China Coal Energy Group Co., Ltd. 7125265
6 China Pingmei Shenma Energy Chemical Instry Group Co., Ltd. 6813417
7 Shanxi Datong Coal Mine Group Co., Ltd. 5132418
8 Shandong Yankuang Group Co., Ltd. 4679232
9 Shanxi Jincheng Anthracite Mining Group Co., Ltd. 4455018
10 Hebei Jizhong Energy Group Co., Ltd. 4100284
11 Shanxi Lu'an Mining (Group) Co., Ltd. 3524840
12 Heilongjiang Longmei mining Holding Group Co., Ltd. 3474636
13 Shanxi Yangquan Coal (Group) Co., Ltd. 3436 799
14 Hebei Kailuan (Group) Co., Ltd. 3344674
15 Shandong Xinwen Mining Group Co., Ltd. 3287262
16 Shandong Zaozhuang Mining (Group) Co., Ltd. 2962848
17 Anhui Huainan Mining (Group) Co., Ltd. 2767789
18 Shaanxi coal and Chemical Instry Group Co., Ltd. 2340783
19 Anhui Huaibei Mining (Group) Limited liability company 2298639
20 Inner Mongolia Yitai Group Co., Ltd. 2291809
21 Shanxi coal import and Export Group Co., Ltd. 2190292
22 Jiangsu Xuzhou Mining Group Co., Ltd. 1856560
23 China Power Investment Mengdong Energy Group Co., Ltd. 1731471
24 Henan Shenhuo Group Co., Ltd. 1606158
25 China Coal Science and Instry Group Co., Ltd. 1490234 < B R / > 26 Shandong Zibo Mining Group Co., Ltd. 1363347
27 Henan Zhengzhou coal instry (Group) Co., Ltd. 1356088 < br
Xugong Group
Liugong group
Northern instry group
Changchun Bus Group (making trains, motor cars, subway cars)
Nanfang bus group (making trains, motor cars, subway cars)
iron and steel enterprises are typical heavy instries, The ranking of domestic enterprises is as follows:
No.1 Shanghai Baosteel Group Shanghai Iron and Steel Co., Ltd.
No.2 Shougang Group Beijing Iron and steel state owned 61900000
No.3 Anshan Iron and Steel Group Liaoning iron and steel state owned 50142107
No.4 Wuhan Iron and steel group Hubei iron and steel state owned 40126080
No.5 Jiangsu Shagang Group Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 31074562
6th Laiwu Iron and Steel Group Shandong Iron and Steel Co., Ltd. 30102773
7th Taiyuan Iron and steel (Group) Co., Ltd. Shanxi iron and steel state owned 29016920
8th Jinan Iron and Steel Group Corporation Shandong iron and steel state owned 27396350
9th Maanshan Iron and Steel Co., Ltd. Anhui iron and Steel Co., Ltd 838574
No.10 Handan Iron and Steel Group Co., Ltd. Hebei Iron and steel state owned 26169112
No.11 Panhua Iron and steel (Group) Co., Ltd. Sichuan iron and steel state owned 25294203
No.12 Tangshan Iron and Steel Group Co., Ltd. Hebei Iron and steel state owned 25124553
No.13 Benxi Iron and steel (Group) Co., Ltd. Liaoning iron and steel state owned 23515050
No The 14th Nanjing Iron and Steel Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 22687670
the 15th Beitai Iron and steel (Group) Co., Ltd. Liaoning iron and steel state owned 22091340
the 16th Hangzhou Iron and Steel Group Co., Ltd. Zhejiang iron and Steel Co., Ltd. 21878372
the 17th Baotou Iron and Steel Group Inner Mongolia Autonomous Region iron and steel state owned 21534680
the 18th Tianjin Tiantie Metallurgical Group Co., Ltd Tianjin Iron and Steel Co., Ltd. 20343538
the 19th Qing Iron and steel Holding Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 19955700
the 20th Jiangsu Huaxi Group Co., Ltd. Jiangsu iron and steel collective 19784310
the 21st Anyang Iron and Steel Group Co., Ltd. Henan iron and steel state owned 16371280
the 22nd Jiuquan Iron and steel (Group) Co., Ltd Gansu iron and Steel Co., Ltd. 13139591
the 23rd Tianjin Steel Tube Group Co., Ltd. Tianjin Iron and steel state owned 12535361
the 24th Xinyu Iron and Steel Co., Ltd. Jiangxi iron and Steel Co., Ltd. 11804952
the 25th Guangxi Liuzhou Iron and Steel Group Co., Ltd. Guangxi Zhuang Autonomous Region iron and steel state owned 11460052
the 26th Tangshan Guofeng iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd Hong Kong, Macao and Taiwan 11325290
27th Guangdong Shaoguan Iron and Steel Group Co., Ltd. Guangdong iron and Steel Co., Ltd. 10862722
28th Lianyuan Iron and Steel Group Co., Ltd. Hunan Iron and steel state owned 10836928
29th Chongqing Iron and steel (Group) Co., Ltd. Chongqing Iron and steel Hong Kong, Macao and Taiwan 10744615
30th Jiangsu Yonggang Group Co., Ltd. Jiangsu iron and Steel Co., Ltd Ltd. 10632620
the 31st Xuanhua Iron and Steel Group Co., Ltd. Hebei Iron and Steel Co., Ltd. 10612764
the 32nd Tianjin Tiangang Group Co., Ltd. Tianjin Iron and steel state owned 10111714
the 33rd Jiangyin Xingcheng Special Iron and Steel Co., Ltd. Jiangsu iron and steel Hong Kong, Macao and Taiwan 10023059
the 34th Shanghai Meishan Iron and Steel Co., Ltd. Jiangsu iron and Steel Co., Ltd 82063
the 35th Guangzhou Iron and Steel Co., Ltd. Guangdong iron and steel Hong Kong Macao Taiwan 9618567
the 36th Xiangtan Iron and Steel Group Co., Ltd. Hunan Iron and steel state owned 9583760
the 37th Hebei Jinxi iron and Steel Co., Ltd. Hebei Iron and steel foreign investment 9232034
the 38th Xinxing Cast Pipe Co., Ltd. Hebei Iron and Steel Co., Ltd. 8800566
the 39th East North Special Steel Group Co., Ltd. Liaoning iron and Steel Co., Ltd. 8563510
40th Fujian Sansteel (Group) Co., Ltd. Fujian iron and steel state owned 7738510
41st Chengde Iron and Steel Group Co., Ltd. Hebei Iron and Steel Co., Ltd. 7218349
42nd Pingxiang Iron and Steel Co., Ltd. Jiangxi iron and Steel Co., Ltd. 7035780
43rd Tonghua Iron and Steel Co., Ltd Jilin iron and Steel Co., Ltd. 6701140
the 44th Shanxi Haixin iron and Steel Group Co., Ltd. Shanxi iron and Steel Co., Ltd. 6614250
the 45th Xinjiang Bayi Iron and Steel Co., Ltd. Xinjiang Uygur Autonomous Region iron and Steel Co., Ltd. 6537792
the 46th Nanjing Iron and Steel Group Jiangsu Huaihe iron and Steel Co., Ltd. Jiangsu iron and Steel Co., Ltd. 6534242
the 47th Sichuan Chuanwei iron and Steel Co., Ltd Group Co., Ltd. Sichuan iron and Steel Co., Ltd. 6484745
48th Xingtai Iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd. Hong Kong, Macao and Taiwan 6468070
49th Pangang Group Cheng Iron and Steel Co., Ltd. Sichuan iron and steel state owned 6467961
50th Lingyuan Iron and Steel Group Co., Ltd. Liaoning iron and steel state owned 6305544
51st Hubei Xinye Steel Co., Ltd Hubei steel joint venture 6180855
No.52 Nanchang Steel Co., Ltd Jiangxi Steel state owned 6104687
No.53 Shuicheng Steel (Group) Co., Ltd Guizhou Steel Co., Ltd 5891630
No.54 Wuyang Steel Co., Ltd Henan Steel Co., Ltd 5521179
No.55 Chang Steel Group Co., Ltd Shanxi steel state owned 549921 0
the 56th Tangshan Jianlong Instrial Co., Ltd. Hebei steel private 5098494
the 57th Jiangyin Xicheng Steel Co., Ltd. Jiangsu steel private 4259140
the 58th Tangshan ganglu Steel Co., Ltd. Hebei steel Hong Kong, Macao and Taiwan 4178576
the 59th Fushun Special Steel Co., Ltd. Liaoning steel Co., Ltd. 4070264
the 60th Rizhao steel Holding Co., Ltd Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 4061523
No. 61 Fushun new Fushun Iron and Steel Co., Ltd. Liaoning iron and steel state owned 3932953
No. 62 Jiangsu Suzhou iron and Steel Group Co., Ltd. Jiangsu iron and Steel Co., Ltd. 3682106
No. 63 Shaanxi Longmen Iron and steel (Group) Co., Ltd. Shaanxi iron and Steel Co., Ltd. 3667210
No. 64 Panhua Iron and Steel City Enterprise General Corporation Sichuan iron and Steel Group 3641570
65th Shandong Shiheng Special Steel Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 3586250
66th Xingtai Delong iron and Steel Instry Co., Ltd. Hebei Iron and Steel Co., Ltd. 3561691
67th Wuxi Xixing iron and Steel Co., Ltd. Jiangsu iron and Steel Group 3556545
68th Hebei Tangshan Banbidian iron and Steel Group Co., Ltd The 69th Henan Jiyuan Iron and Steel Group Co., Ltd. Henan iron and Steel Co., Ltd. 3456378
the 70th Shandong Taishan Iron and Steel Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 3431827
the 71st Hebei Luanhe Instrial Group Co., Ltd. Hebei Iron and Steel Co., Ltd. Hong Kong, Macao and Taiwan 3313278
the 72nd Jiangsu Tieben iron and Steel Co., Ltd. Jiangsu iron and steel private company 3229480 < br/ >The 73rd Xinjiang Bayi Steel Group Co., Ltd. Xinjiang Uygur Autonomous Region steel 3167583
the 74th Sichuan Dazhou Steel Group Co., Ltd. Sichuan Steel Co., Ltd. 3032952
the 75th Hebei Puyang Steel Co., Ltd. Hebei steel Hong Kong, Macao and Taiwan 3011742
the 76th Panhua Steel Group Sichuan Great Wall Special Steel Co., Ltd. Sichuan steel The 77th Jilin Jianlong iron and Steel Co., Ltd. Jilin iron and Steel Co., Ltd. 2906154
the 78th Shandong Shouguang Juneng Electric Power Group Co., Ltd. Shandong Iron and Steel Co., Ltd. 2900196
the 79th Shanxi Yujin iron and Steel Co., Ltd. Shanxi iron and Steel Co., Ltd. 2778382
the 80th Jiangsu Xigang Group Co., Ltd. Jiangsu state owned iron and Steel Co., Ltd 2737418
No.81 Shanxi Zhongyang Steel Works Shanxi steel collective 2724175
No.82 Hengyang Steel Pipe Group Co., Ltd. Hunan steel state owned 2522365
No.83 Hengshui Jinghua Pipe Co., Ltd. Hebei Steel Co., Ltd. 2428682
No.84 Fujian San'an Steel Co., Ltd. Fujian steel joint venture 2404913
No.85 Hefei Steel Group Co., Ltd The 86th Wuhu Xinxing Cast Pipe Co., Ltd. Anhui iron and Steel Co., Ltd. 2368707
the 87th Tangshan Xingye Instry and Trade Co., Ltd. Hebei Iron and steel private company 2302543
the 88th Hebei Wenfeng iron and Steel Co., Ltd. Hebei Iron and steel joint venture 2209669
the 89th Jilin Ferroalloy Co., Ltd The 90th Xuzhou Iron and steel works Jiangsu iron and steel state owned 2179354
the 91st Xilin Iron and Steel Group Co., Ltd Heilongjiang iron and steel state owned 2176146
the 92nd Xining Special Steel Co., Ltd Qinghai iron and Steel Co., Ltd 2170409
the 93rd Jiangsu Xuanli group Co., Ltd Jiangsu iron and Steel Co., Ltd 2164466
the 94th Tangshan nitic steel works Hebei Iron and Steel Group 2125002
95th Hebei Dongsheng Group Co., Ltd. Hebei Iron and steel private 2116919
96th Hebei Xinjin iron and Steel Co., Ltd. Hebei Iron and Steel Co., Ltd. 2110215
97th Tianjin Rongcheng United iron and Steel Group Co., Ltd. Tianjin iron and steel private 2099413
98th Tangshan Songting iron and Steel Co., Ltd Hebei Iron and Steel Co., Ltd. 2096612
No. 99 Lengshuijiang iron and steel works Hunan Iron and steel state owned 2058000
No. 100 Anyang Iron and Steel Group Xinyang iron and Steel Co., Ltd. Henan iron and steel state owned 2029812
2009 Top 100 Coal Enterprises
ranking enterprise name business income (10000 yuan)
1 Shenhua Group Co., Ltd. 14402329
2 Shanxi coal transportation and Marketing Group Co., Ltd. 9023941
3 Henan Coal Chemical Instry Group Co., Ltd. 8211530
4 Shanxi Coking Coal Group Co., Ltd. 7179795
5 China Coal Energy Group Co., Ltd. 7125265
6 China Pingmei Shenma Energy Chemical Instry Group Co., Ltd. 6813417
7 Shanxi Datong Coal Mine Group Co., Ltd. 5132418
8 Shandong Yankuang Group Co., Ltd. 4679232
9 Shanxi Jincheng Anthracite Mining Group Co., Ltd. 4455018
10 Hebei Jizhong Energy Group Co., Ltd. 4100284
11 Shanxi Lu'an Mining (Group) Co., Ltd. 3524840
12 Heilongjiang Longmei mining Holding Group Co., Ltd. 3474636
13 Shanxi Yangquan Coal (Group) Co., Ltd. 3436 799
14 Hebei Kailuan (Group) Co., Ltd. 3344674
15 Shandong Xinwen Mining Group Co., Ltd. 3287262
16 Shandong Zaozhuang Mining (Group) Co., Ltd. 2962848
17 Anhui Huainan Mining (Group) Co., Ltd. 2767789
18 Shaanxi coal and Chemical Instry Group Co., Ltd. 2340783
19 Anhui Huaibei Mining (Group) Limited liability company 2298639
20 Inner Mongolia Yitai Group Co., Ltd. 2291809
21 Shanxi coal import and Export Group Co., Ltd. 2190292
22 Jiangsu Xuzhou Mining Group Co., Ltd. 1856560
23 China Power Investment Mengdong Energy Group Co., Ltd. 1731471
24 Henan Shenhuo Group Co., Ltd. 1606158
25 China Coal Science and Instry Group Co., Ltd. 1490234 < B R / > 26 Shandong Zibo Mining Group Co., Ltd. 1363347
27 Henan Zhengzhou coal instry (Group) Co., Ltd. 1356088 < br
4. Blockchain 2.0 is to write human's unified language, economic behavior, social system and even life as a basic software protocol. Unified language unifies the natural languages of different nationalities into a low entropy expression form and provides its interface with computer language; Human economic behavior, social system and life regeneration mechanism are collectively referred to as time monetary system. Blockchain 2.0 is a distributed artificial intelligence operating system integrating unified language and time currency
judging from the characteristics of the language itself, go is a very efficient language, which highly supports concurrency. The go language itself pays more attention to distributed systems, and concurrency processing is relatively good, such as advertising and search, which are high concurrency servers
go language advantages:
excellent performance, can be directly compiled into machine code, does not rely on other libraries, go is extremely fast. Its performance is similar to Java or C + +
concurrency is supported at the language level, which is the biggest feature of go. It is born to support concurrency, and go is the concurrency supported in gene, which can make full use of multi-core and make it easy to use concurrency
the built-in runtime supports garbage collection, which is one of the features of dynamic language. Although GC is not perfect at present, it is enough to cope with most of the situations we can encounter, especially GC after go1.1
it's easy to learn. The authors of go language all have the gene of C, so go naturally has the gene of C. There are 25 go keywords, but the expressive ability is very strong. It almost supports most of the features you've seen in other languages: inheritance, overloading, object, etc
rich standard libraries, go has built a large number of libraries, especially the network library, which is also my favorite part< As like as two peas, br / > built-in powerful tools, Go language is built with many tools chain, the best should be gofmt tools, automatic formatting code, make team review become so simple, code format is exactly the same, it is very difficult to think differently.
cross platform compilation and fast compilation. Compared with the sluggish compilation speed of Java and C + +, the fast compilation time of go is a major efficiency advantage
disadvantages of go language:
package management: package management of go language is absolutely not perfect. By default, it has no way to make a specific version of the dependency library, nor can it create replicable builds. In contrast, python, node and Ruby all have better package management systems. However, with the right tools, the package management of go language can also perform well
lack of development framework: go language does not have a major framework, such as Ruby's rails framework, Python's Django framework or PHP's laravel. This is a heated discussion in the go language community, because many people think that we should not start with using frameworks. This is true in many cases, but if you just want to build a simple crud API, it's much easier to use Django / djrf, rails laravel, or Phoenix
exception handling: go language can help developers deal with compilation errors by simply returning errors (or call stack) through functions and expected calling codes. Although this method is effective, it is easy to lose the scope of the error, so it is difficult to provide meaningful error information to users. Error package can solve this problem by allowing us to add context and stack trace to return error
another problem is that we may forget to handle errors. Static analysis tools such as errcheck and megacheck can avoid these errors. Although these solutions are very effective, they may not be the right way.
judging from the characteristics of the language itself, go is a very efficient language, which highly supports concurrency. The go language itself pays more attention to distributed systems, and concurrency processing is relatively good, such as advertising and search, which are high concurrency servers
go language advantages:
excellent performance, can be directly compiled into machine code, does not rely on other libraries, go is extremely fast. Its performance is similar to Java or C + +
concurrency is supported at the language level, which is the biggest feature of go. It is born to support concurrency, and go is the concurrency supported in gene, which can make full use of multi-core and make it easy to use concurrency
the built-in runtime supports garbage collection, which is one of the features of dynamic language. Although GC is not perfect at present, it is enough to cope with most of the situations we can encounter, especially GC after go1.1
it's easy to learn. The authors of go language all have the gene of C, so go naturally has the gene of C. There are 25 go keywords, but the expressive ability is very strong. It almost supports most of the features you've seen in other languages: inheritance, overloading, object, etc
rich standard libraries, go has built a large number of libraries, especially the network library, which is also my favorite part< As like as two peas, br / > built-in powerful tools, Go language is built with many tools chain, the best should be gofmt tools, automatic formatting code, make team review become so simple, code format is exactly the same, it is very difficult to think differently.
cross platform compilation and fast compilation. Compared with the sluggish compilation speed of Java and C + +, the fast compilation time of go is a major efficiency advantage
disadvantages of go language:
package management: package management of go language is absolutely not perfect. By default, it has no way to make a specific version of the dependency library, nor can it create replicable builds. In contrast, python, node and Ruby all have better package management systems. However, with the right tools, the package management of go language can also perform well
lack of development framework: go language does not have a major framework, such as Ruby's rails framework, Python's Django framework or PHP's laravel. This is a heated discussion in the go language community, because many people think that we should not start with using frameworks. This is true in many cases, but if you just want to build a simple crud API, it's much easier to use Django / djrf, rails laravel, or Phoenix
exception handling: go language can help developers deal with compilation errors by simply returning errors (or call stack) through functions and expected calling codes. Although this method is effective, it is easy to lose the scope of the error, so it is difficult to provide meaningful error information to users. Error package can solve this problem by allowing us to add context and stack trace to return error
another problem is that we may forget to handle errors. Static analysis tools such as errcheck and megacheck can avoid these errors. Although these solutions are very effective, they may not be the right way.
5. Is it a RBT? Jie Gai the Gai of the Liberation Army
6. The weight of a walking tractor depends on its rear tires and accessories. Generally, the weight of sand is 1.5 tons, the weight of red bricks is about 4 tons, and the weight of steel ingots is about 5 tons. There are also 6 or 7 tons. This is a walking tractor
what your colleague said is true, but it does not mean walking tractor, but a modified tractor, which is now called a low-speed truck. Its speed is slower than the truck, but the tires, engine, gearbox, steel plate, girder and so on are very rich, which came into being for overload. There are even tractor trailers with dozens of tons of small case
in the past, e to the lack of road maintenance fees for tractors and the lack of Internet access, some trucks shamelessly hung tractor license plates. But now there is no cost, the tractor market has gone, because farmers have to buy light trucks.
what your colleague said is true, but it does not mean walking tractor, but a modified tractor, which is now called a low-speed truck. Its speed is slower than the truck, but the tires, engine, gearbox, steel plate, girder and so on are very rich, which came into being for overload. There are even tractor trailers with dozens of tons of small case
in the past, e to the lack of road maintenance fees for tractors and the lack of Internet access, some trucks shamelessly hung tractor license plates. But now there is no cost, the tractor market has gone, because farmers have to buy light trucks.
7. According to the road conditions, roads 50 to 60 are OK, and rural roads are 804 (the smallest) to 1004
8. Use the arrow keys to dig underground. Constantly mining minerals and using the money from the sale of minerals to upgrade props. Use the shortcut keys a, s, D, F, G to use props. For package management, you can refer to dragging the mouse in the package to sort out the props. If the package is full, you can go back to the base and sell all the minerals. You can save the game in the package interface. You can refer to the combat method. Use the shortcut key to place the bomb. The bomb explosion takes several minutes, so judge the direction and speed of the enemy! In boss battle space, your oxygen and bomb can be filled. The first level is the most time-consuming. The time of 200 layers is to pay attention to the task and speak. According to his words, you will find titanium. Be patient. The boss is on the bottom left. When you dig to the bottom, you will see a big monster area. If you kill a big doorman, you will explode the key (you don't need to buy 250000), open the door, prepare the bomb (you can buy it outside, or you can pick it up inside), and kill the boss
in the second level, starting from the stones on the far left, the second piece of soil starts to dig all the way down. When the stones raise money to buy super powerful bombs, there will be a dialogue until more than 200, and then dig down to the 220 level vertically to contact the fallen person, and you can get 100000, then go up to archive, exit, enter again, and then go to the original road to save him, and you can get 100000 again. So repeatedly, money is not a problem. The rest of this pass is to look for selenium ore in 300 layers. Follow the road just now and dig down (use bombs where there are stones). You will see a kind of yellow ore. if you pick it up, you will pass the pass
in the third level, dig from the far left to about 450 floors. On the right side, there is a labyrinth of stones. But it's very simple. Find the monster area at the bottom, open the boss door with the key, and kill the boss< How to pass the first level
when you dig 350 meters, there are a lot of rocks... And then you can see the boss. After defeating him, the doctor says it's fake, but he wants to chase after him. Then the animation (the doctor's house flies)... And he lands in a place full of ice. The doctor says that there is no fuel, You need selenium as fuel, and then you dig... Dig to about 200 meters, and turn to Dr. animation. He said that someone was killed at about 350 meters, and you need to rescue them. However, e to oxygen, you only have two hours to search carefully at 220 meters, and you can see people. After touching, there will be animation, and you will get 100000 yuan
in the second level, starting from the stones on the far left, the second piece of soil starts to dig all the way down. When the stones raise money to buy super powerful bombs, there will be a dialogue until more than 200, and then dig down to the 220 level vertically to contact the fallen person, and you can get 100000, then go up to archive, exit, enter again, and then go to the original road to save him, and you can get 100000 again. So repeatedly, money is not a problem. The rest of this pass is to look for selenium ore in 300 layers. Follow the road just now and dig down (use bombs where there are stones). You will see a kind of yellow ore. if you pick it up, you will pass the pass
in the third level, dig from the far left to about 450 floors. On the right side, there is a labyrinth of stones. But it's very simple. Find the monster area at the bottom, open the boss door with the key, and kill the boss< How to pass the first level
when you dig 350 meters, there are a lot of rocks... And then you can see the boss. After defeating him, the doctor says it's fake, but he wants to chase after him. Then the animation (the doctor's house flies)... And he lands in a place full of ice. The doctor says that there is no fuel, You need selenium as fuel, and then you dig... Dig to about 200 meters, and turn to Dr. animation. He said that someone was killed at about 350 meters, and you need to rescue them. However, e to oxygen, you only have two hours to search carefully at 220 meters, and you can see people. After touching, there will be animation, and you will get 100000 yuan
9. Congratulations, you are missing a bad friend. He is pulling you to do pyramid selling in bitcoin mode. There are 20 million bitcoins in total, and now one is as high as $8000.
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