blockchain - solidity - hardhat - 使用 script ，使用本地的hardhat node

refer to:
https://hardhat.org/hardhat-runner/docs/advanced/scripts

创建任意文件， yourscript.js

内容如下:

const hre = require("hardhat")

async function main() {

  let accounts = await hre.ethers.getSigners()
  console.info("== accounts: ", accounts)
  for(let account of accounts) {

    console.info(account.address, await hre.ethers.provider.getBalance(account.address))

  }
}

main()

注意：想要让操作结果持久的话。

1. 必须指定 --network ，例如 npx hardhat run your.script --network localhost

2. 必须用 npx hardhat run 来运行，而不是node your.script

使用正确的手法运行：

使用错误的（没有参数的，默认的）手法运行：

进行转账：

const hre = require("hardhat")

async function main() {

  let to_address = '0x959922be3caee4b8cd9a407cc3ac1c251c2007b1'
  // 下面2行，这里必须这样分开些
  let signers = await hre.ethers.getSigners()
  let signer = signers[0]

  console.info("== before send ETH, balance is: ", await hre.ethers.provider.getBalance(to_address))

  let options = {
    to: to_address,
    value: "3000000000000000000",
  }
  let tx = await signer.sendTransaction(options)
  let result = tx.wait()
  console.info("== result: ", result)
  console.info("== after, balance: ", await hre.ethers.provider.getBalance(to_address))
  console.info("== after, balancesender: ", await hre.ethers.provider.getBalance(signer.address))

}

main()