DEFI/LP 质押流动性挖矿模式是一种在 DeFi 领域中常见的挖矿方式。它通过将 LP 代币或 DAPP 代币质押到相应的智能合约中，使用户可以参与挖矿活动并获取相应的奖励。
在这种模式下，用户首先将 LP 代币或 DAPP 代币质押到指定的智能合约中，锁定一定的价值作为流动性提供者。然后，用户将获得一定比例的挖矿奖励，奖励通常以代币的形式发放。用户可以随时赎回质押的代币，并获取相应的奖励。
整个流程通过智能合约自动化执行，保证了透明、公正和安全性。质押流动性挖矿不仅可以为用户提供收益，还可以为 DeFi 协议提供流动性，促进其正常运行。
以下是一个简单的 DEFI/LP 质押流动性挖矿奖励发放合约的示例代码，使用 Solidity 语言编写：
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract RewardDistribution {
// LP 代币合约地址
address private LPTokenContract;
// DAPP 代币合约地址
address private DAPPTokenContract;
// 奖励代币合约地址
address private RewardTokenContract;
// 锁定期限（以区块高度为单位） uint private lockPeriod;
// 记录质押的LP代币数量 uint256 private stakedLP; // 记录质押的DAPP代币数量 uint256 private stakedDAPP;
// 记录每个用户的奖励余额 【完整逻辑部署搭建可看我昵称】mapping(address => uint256) private userRewards;
constructor(address _LPTokenContract, address _DAPPTokenContract, address _RewardTokenContract, uint _lockPeriod) { LPTokenContract = _LPTokenContract; DAPPTokenContract = _DAPPTokenContract; RewardTokenContract = _RewardTokenContract; lockPeriod = _lockPeriod; }
// 质押LP代币 【完整逻辑部署搭建可看我昵称】function stakeLP(uint _stakeAmount) public { require(_stakeAmount > 0); uint256 newStakedLP = (stakedLP + _stakeAmount) - (_stakeAmount * lockPeriod); stakedLP = newStakedLP; require(LPTokenContract.transfer(_RewardTokenContract, _stakeAmount)); userRewards[msg.sender] += _stakeAmount; }
// 质押DAPP代币 function stakeDAPP(uint _stakeAmount) public { require(_stakeAmount > 0); uint256 newStakedDAPP = (stakedDAPP + _stakeAmount) - (_stakeAmount * lockPeriod); stakedDAPP = newStakedDAPP; require(DAPPTokenContract.transfer(_RewardTokenContract, _stakeAmount)); userRewards[msg.sender] += _stakeAmount; }
// 获取奖励余额 function getUserRewards(address _userAddress) public view returns (uint256) { return userRewards[_userAddress]; }
// 释放质押的代币并获得奖励 function unstake(uint _unstakeAmount) public { require(_unstakeAmount > 0); uint256 newStakedLP = stakedLP + _unstakeAmount; uint256 newStakedDAPP = stakedDAPP + (_unstakeAmount * lockPeriod); stakedLP = newStakedLP; stakedDAPP = newStakedDAPP; require(RewardTokenContract.transferFrom(msg.sender, LPTokenContract, _unstakeAmount)); require(RewardTokenContract.transferFrom(msg.sender, DAPPTokenContract, _unstakeAmount * lockPeriod)); userRewards[msg.sender] -= _unstakeAmount; }
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}
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