Let's talk about the general process first (to facilitate grasping the general direction and memory):
1. Create a wallet, the purpose: the wallet will be used to store public and private key key pairs
2. Create a public and private key key pair, and import the key pair into the wallet to save
3. Take out the created two key pairs to create users (contracts can only be used when deployed to an account, and an account can only deploy one contract at most, when you deploy a new contract to an account, before the account The deployed contract will no longer be available)
4. Write smart contracts
5. Compile the smart contract
6. Deploy smart contract (deploy the compiled smart contract above to the account created above)
7. Publish smart contracts
8. Call and execute smart contract
