第126篇合约间调用方法

最新推荐文章于 2025-12-01 21:35:18 发布

wonderBlock

最新推荐文章于 2025-12-01 21:35:18 发布

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分类专栏：区块链应用文章标签：以太坊智能合约 solidity 调用

本文链接：https://blog.youkuaiyun.com/wonderBlock/article/details/125148075

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本文详细阐述了以太坊智能合约中的三种合约间调用方式：一般调用、调用其他合约以及调用超级合约。所有示例合约已通过编译，可供学习参考。

本文介绍三种类型的合约间调用；

1.一般调用

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.3;

contract Receiver {
    event Received(address caller, uint256 amount, string message);

    receive() external payable {}

    fallback()  external payable {
        emit Received(msg.sender, msg.value, "Fallback was called");
    }

    function foo(string memory _message, uint256 _x)
        public
        payable
        returns (uint256)
    {
        emit Received(msg.sender, msg.value, _message);

        return _x + 1;
    }
}

contract Caller {
    event Response(bool success, bytes data);

    // Let's imagine that contract B does not have the source code for
    // contract A, but we do know the address of A and the function to call.
    function testCallFoo(address payab

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