# WETH(包装以太坊)

By [web3zoom](https://paragraph.com/@web3zoom) · 2025-10-01

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遵守ERC20协议，将以太坊协议包装在WETH中，可以实现所有的以太坊方法。

继承Openzepplin协议

    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.30;
    
    import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
    import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
    import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
    
    contract WETH is ERC20, ERC20Burnable, Ownable{
        event Deposit(address indexed account, uint amount);
        event Withdraw(address indexed account, uint amount);
    
    
        constructor(address initialOwner)
            ERC20("MyToken", "MTK")
            Ownable(initialOwner)
        {}
    
        fallback() external payable { 
            deposit();
        }
    
        function mint(address to, uint256 amount) public onlyOwner {
            _mint(to, amount);
        }
    
        function deposit() public payable {
            _mint(msg.sender, msg.value);
            emit Deposit(msg.sender, msg.value);
        }
    
        function withdraw(uint _amount) external {
            _burn(msg.sender, _amount);
            payable(msg.sender).transfer(_amount);
            emit Withdraw(msg.sender, _amount);
        }
    }

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*Originally published on [web3zoom](https://paragraph.com/@web3zoom/weth)*