Virtual currency development language
They are:
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, the open source software was designed and released, and the P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
bitcoin cash
bitcoin cash is a new version of bitcoin with different configurations launched by a small number of bitcoin developers
extended data:
virtual currency refers to non real currency. Well known virtual currency, such as network company's network currency, Tencent company's Q currency, Q point, Shanda company's voucher, Sina's Micro currency (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver pattern (used for bixue Qingtian game)
the popular digital currencies in 2013 are bitcoin, Leyte coin, infinite coin, quark coin, zeta coin, BBQ coin, pennies (Internet), invisible gold bar, red coin and prime currency. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"
linux is an operating system developed with standard C language
Android bottom driver and operating system kernel are developed by C language and assembly
Android operating system itself is developed with Java, and uses JNI to call the local C language library to realize the underlying scheling of the operating system
Android applications are developed with Java; At the same time, you can also use C / C + + native development, but most of the time do not use C. So basically Java is the standard development language
Android uses a modified JVM (Java virtual machine), which is called Dalvik virtual machine, and its essence is java virtual machine
therefore, a Dalvik virtual machine, that is, a Linux process, will be created for each app
to say it's complicated, it's actually running Java programs based on the modified version of Java virtual machine under Linux
hope to help you!
I borrowed 100000 yuan when I was only 16 years old; It's an astronomical number. I'm so bold; A Suzhou mother looked at her son and couldn't restrain her emotion any more. The boy knew that he had done something wrong, stood aside and didn't say a word. She felt guilty and wronged on her childish face{ RRRRR}
as a minor, you should be more cautious and careful when you have a good imagination of the society. There are many good people in this world, but there are also some people with ulterior minds who communicate with their parents when they are not sure. They are the only people in the world who don't ask for your return. As the Spring Festival approaches, swindlers wait for the opportunity to celebrate the Chinese New Year
1. The outdoor power supply line is long, or the external wire section is small, resulting in large line loss. Once the home equipment with large power consumption is turned on (such as inction cooker, refrigerator, air conditioner, etc.), the line voltage drop is large, and the voltage is unstable. It is recommended to call the 24-hour power supply service hotline 95598, and the staff will follow up for you
2. The indoor wiring is unreasonable, the cross section of the main wire is too small, and when the equipment with large power consumption starts, the voltage drop is large, resulting in the instability of the same circuit voltage. It is suggested that for the equipment with large power consumption, separate circuit and separate wiring should be adopted
I hope our answers can help you.
1 close the bitcoin client and find the file wallet.dat
WinXP start menu, select "run" and input the following contents: Explorer% appdata% bitcoin
Windows Vista or windows 7, directly input wallet.dat in the "search programs and files" box of the start menu to search
2 right click on the file and select "add to compressed file...", then the following dialog box will appear:
3 set a file name, Check "delete source file after compression"
then click the "advanced" tab:
4 click "set password..." and enter the same password twice in the pop-up dialog box
click "OK" and then click "OK" again to complete the encryption
5 you will see that the original wallet.dat file in the wallet folder is gone, but there is an additional. Rar file
6 encryption is successful
restore wallet
1 you just need to follow the steps of "back up wallet" (described in the previous experience) to open the wallet folder of bitcoin official client
2 the backup wallet.dat file to this folder, and then overlay the original file
precautions
if you use winrar to encrypt the backup, you need to enter the correct password first to restore the wallet.dat.
but there is no problem, so it can not be determined
few investors and poor liquidity; Lack of supervision and serious manipulation.