1、open this website with chrome. https://remix.ethereum.org/ 2、accept and then click next, done.3、click the small button（create new file),name new file with Function.sol4、copy this code to Function.sol// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; contract FunctionTypes{ uint256 public number = 5; constructor() payable {} // 函数类型 // function (<parameter types>) {internal|external} [pure|view|payable] [returns (<return types>)] // 默认function function add() external{ number =...
