力波链Libre社交系统原理及概念

力波链是一个去中心化的社交网络系统，用户不再需要信任第三方中介或中心化平台，每个用户都是整个系统的一部分，数据由节点进行 系统 - 176 搭建 - 0206 + 可电可微 - 5616 存储和管理，数据权力也归用户所有。

typescriptCopy codepragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";import "@openzeppelin/contracts/utils/math/SafeMath.sol";
contract IDOStakingContract {
  using SafeMath for uint256;   IERC20 public token1;   IERC20 public token2;
  struct User {
    uint256 amount1;
    uint256 amount2;
    uint256 rewardDebt;
  }
  mapping (address => User) public users;
  uint256 public totalAmount1;
  uint256 public totalAmount2;
  uint256 public rewardPerToken;
    constructor(IERC20 _token1, IERC20 _token2) {
    token1 = _token1;
    token2 = _token2;
  }
    function stake(uint256 _amount1, uint256 _amount2) external {  
      require(_amount1 > 0 && _amount2 > 0, "Amounts must be greater than 0");
    token1.transferFrom(msg.sender, address(this), _amount1);
    token2.transferFrom(msg.sender, address(this), _amount2);
    users[msg.sender].amount1 = _amount1;
    users[msg.sender].amount2 = _amount2;
    totalAmount1 = totalAmount1.add(_amount1);
    totalAmount2 = totalAmount2.add(_amount2);  
        if (totalAmount1 > 0 && totalAmount2 > 0) {
        uint256 reward = token1.balanceOf(address(this));
        rewardPerToken = reward.div(totalAmount1).div(totalAmount2);
    }
    users[msg.sender].rewardDebt = rewardPerToken;
  }  
  function withdraw() external {
      require(users[msg.sender].amount1 > 0 && users[msg.sender].amount2 > 0,
  "Nothing staked");
    uint256 amount1 = users[msg.sender].amount1;
    uint256 amount2 = users[msg.sender].amount2;
    token