我把WETH打进合约地址里面，怎么通过代码怎么把合约地址里面的WETH转换成ETH提取到钱包地址里面呢？

我是这样弄的，定义了一个IWETH接口

interface IWETH {
    function deposit() external payable;

    function transfer(address to, uint value) external returns (bool);

    function withdraw(uint256 value) external payable;
}

然后在函数利用转出ETH

function withdraw(uint256 value) public payable returns(uint) {
        IWETH(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2).withdraw(value);