Charlie-pang-sys

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

contract FundMe{
    // 1、创建一个收款函数
    // 2、记录投资人并且查看
    // 3、在锁定期内，没有达到目标值，投资人在锁定期以后退款

    mapping(address=>uint256) public fundersToAmount;

Charlie-pang-sys

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

contract FundMe{
    mapping(address=>uint256) public fundersToAmount;
    AggregatorV3Interface internal dataFeed;
    uint256 MINIMUM_VALUE = 100 *10 **18;
    constructor(){
        dataFeed = AggregatorV3Interface(0x694AA1769357215DE4FAC081bf1f309aDC325306);

Charlie-pang-sys

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

contract FundMe{
    mapping(address=>uint256) public fundersToAmount;
    AggregatorV3Interface internal dataFeed;
    uint256 MINIMUM_VALUE = 100 *10 **18;
    constructor(){
        dataFeed = AggregatorV3Interface(0x694AA1769357215DE4FAC081bf1f309aDC325306);

Charlie-pang-sys

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract FundMe{
    
}

Charlie-pang-sys

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;