Wealth威爾士智慧合約挖礦系統開發技術

lxqy16688發表於2023-05-06

 智慧合約的出現,使區塊鏈不僅能處理簡單的轉賬功能,還能實現複雜的業務邏輯,極大地推動了區塊鏈技術發展,加速應用落地。I88智慧合約I928系統開發8024

  

  透過智慧合約語言Solidity,實現了共識邏輯的自定義。基於區塊鏈的分散式應用(dapp)的底層技術就是“區塊鏈+智慧合約”。第一個結合了區塊鏈與智慧合約技術的平臺--以太坊的誕生,被認為是開啟了"區塊鏈2.0"時代。

  

  pragma solidity^0.4.23;

  

  import"./ERC20Basic.sol";

  

  contract ERC20 is ERC20Basic{

  

  function allowance(address owner,address spender)

  

  public view returns(uint256);

  

  function transferFrom(address from,address to,uint256 value)

  

  public returns(bool);

  

  function approve(address spender,uint256 value)public returns(bool);

  

  event Approval(

  

  address indexed owner,

  

  address indexed spender,

  

  uint256 value

  

  );

  

  }

  

  pragma solidity^0.4.24;

  

  import"../node_modules/openzeppelin-solidity/contracts/math/SafeMath.sol";

  

  contract TNStoken{

  

  using SafeMath for uint256;

  

  constructor()public{

  

  }

  

  }

  

  event Deposit(address indexed user,uint256 indexed pid,uint256 amount);

  

  event Withdraw(address indexed user,uint256 indexed pid,uint256 amount);

  

  event EmergencyWithdraw(

  

  address indexed user,

  

  uint256 indexed pid,

  

  uint256 amount

  

  );

  

  //部署時需要初始化的引數設定

  

  constructor(

  

  SushiToken _sushi,

  

  address _devaddr,

  

  uint256 _sushiPerBlock,

  

  uint256 _startBlock,

  

  uint256 _bonusEndBlock

  

  )public{


來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/70029086/viewspace-2950305/,如需轉載,請註明出處,否則將追究法律責任。

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