如何将msg.sender作为应付地址传递给结构？

Question

当前遵循教程，此错误在我的代码中不断重复。

我试图将msg.sender作为可支付地址添加到结构中，但错误：Invalid type for argument in function call. Invalid implicit conversion from address to address payable requested.会在整个代码中重复。

只是好奇如何将msg.sender设置为结构。

非常感谢。

    struct Image {
        uint256 id;
        string hash;
        string description;
        uint256 tipAmount;
        address payable author; // < ---- Invalid implicit conversion from address to address payable requested.
    }

/////

    function uploadImage(string memory _imageHash, string memory _description) public {

        require(bytes(_imageHash).length > 0, "Must Have Hash!");

        require(bytes(_description).length > 0, "Must have description");

        require(msg.sender != address(0), "Must have author address");

        imageCount++;

        images[imageCount] = Image(
            imageCount,
            _imageHash,
            _description,
            0,
            msg.sender // < ---- Invalid implicit conversion from address to address payable requested.
        );

        emit ImageCreated(imageCount, _imageHash, _description, 0, msg.sender);
    }

Answer 1

您必须以这种方式转换msg.sender地址：

address payable addr = address(uint160(msg.sender)); 

Answer 2

msg.sender在payable(msg.sender)中的包装为我提供了坚实的0.8.2

Answer 3

请试试这个：

//SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.7.0 <0.9.0;

struct Image {
    ...
    address payable author; // < ---- 
}

然后..。

images[imageCount] = Image(
        imageCount,
        _imageHash,
        _description,
        0,
        payable(msg.sender) // < ---- 
     );