# create2创建合约

**Published by:** [web3zoom](https://paragraph.com/@web3zoom/)
**Published on:** 2025-07-22
**URL:** https://paragraph.com/@web3zoom/create2-2

## Content

// SPDX-License-Identifier: GPL-3.0 pragma solidity ^0.8.30; contract DeployWithCreate2 { address public owner; constructor(address _owner){ owner = _owner; } } contract Create2Factory { event Deploy(address addr); function deploy(uint _salt) external { DeployWithCreate2 _contract = new DeployWithCreate2{ salt: bytes32(_salt) }(msg.sender); emit Deploy(address(_contract)); } function getAddress(bytes memory bytecode, uint _salt) public view returns(address){ bytes32 hash = keccak256( abi.encodePacked( // 新地址 = hash("0xFF",创建者地址, salt, initcode) // address(this): 调用 CREATE2 的当前合约（创建合约）地址。 // keccak256(bytecode): 新合约的初始字节码（合约的Creation Code和构造函数的参数）。 bytes1(0xff), address(this), _salt, keccak256(bytecode) ) ); return address(uint160(uint(hash))); } // 获取字节码的方法 // 将当前合约中的指定方法与EOA账号打包生成字节码 function getBytecode(address _owner) public pure returns(bytes memory){ // 生成的字节码 bytes memory bytecode = type(DeployWithCreate2).creationCode; return abi.encodePacked(bytecode, abi.encode(_owner)); } } 通过salt去控制合约方法的字节码，可以提前预知

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