Bitcoin change setting

1.

Novice first of all to know how to calculate your cost, recharge, trading, cash, there are fees. At least you can understand the K-line. There are a lot of people on the K-line. You can look at it casually and understand it. You need to be risk aware. bitcoin is a high-risk and high profit investment. It may double overnight, or BMW may become a bicycle overnight. At the beginning, we suggest a small amount of investment

but it's hard to get bitcoin for indivial mining, so it's basically large-scale mining, and you need to cooperate with the mine pool. So if you still want to make money by mining, at present, the most suitable mining method is cloud mining or mining machine hosting. After all, the era of single person mining is over

2. Bitcoin will set the balance of the address used for consumption (consumption address) to zero in business. When the amount to be paid is less than the available balance, it is necessary to tell bitcoin network the address to which the change will be sent, namely "change address". The change address may or may not be the address used in the original consumption.

3. 1. Your understanding is correct,
2. The bottom one on the right is the change address. If you don't understand, go to the bitcoin teaching of P2P bucks

4. Bitcoin transfer can transfer the balance of multiple addresses out or into multiple addresses at one time
for example, you need to pay Niuniu 5 bitcoins, but there are 1 / 2 / 2 bitcoins in each of your a / B / C addresses, and the balance of each address is not enough to pay for 5 bitcoins
at this time, you can initiate a transfer and transfer 5 bitcoins from a / B / C to Niuniu. Take chestnuts. If you have five bitcoin addresses, you only need to transfer one to Niuniu. You need to tell the miner when transferring money: I have five bitcoins, one of which will be transferred to Niuniu, and the other four will be transferred back to myself (can be the original address or create a new address)
don't forget to say, otherwise the remaining four bitcoins will be used as handling charges for miners. This is the change mechanism of bitcoin.

5. I opened an account in the okex exchange. The okex app has a built-in wallet and supports a wide range of digital currencies, including collection, transfer and other functions. Also, let's talk about the password of E-wallet. In order to ensure the security of bitcoin, electronic wallet must be encrypted. At the same time, encryption can't be as simple as ordinary wechat password. At least special symbols, upper and lower case letters and numbers should be arranged in a mixed way. The more digits, the better.

6. Why change
can directly pay the required amount, which can be divided originally

7. You can buy and sell.

8. 1.
generally speaking, after landing on the bitcoin trading platform, there will be a string of digital accounts in the top right corner of the web page, which is uid
2.
as shown in the figure, the number 15380 in the upper right corner is the uid of the bitcoin trading platform "fire coin network"< br />3.