Learn Solidty 9 Function Overload

简单理解就是 java 里面的函数的重载，相同函数名，不同的参数或者参数类型就是重载

  • 举例
// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0 <0.9.0;

contract FunctionOverloading {
    function x(uint256 lightSwitch, uint256 wallet) public {}

    function x(uint256 wallet) public {}

    // 重载练习
    function getSum(uint256 a, uint256 b) public pure returns (uint256) {
        return a + b;
    }

    function getSum(
        uint256 a,
        uint256 b,
        uint256 c
    ) public pure returns (uint256) {
        return a + b + c;
    }

    function getSumTwoArgs() public pure returns (uint256) {
        return getSum(2, 3);
    }

    function getSumThreeArgs() public pure returns (uint256) {
        return getSum(1, 5, 6);
    }
}