NFT鑄造合成DAPP質押挖礦模式軟體開發方案

caiayu1234發表於2023-04-14

 Web 3.0代表著Web/internet發展的下一個迭代或階段,可能會像Web 2.0那樣具有破壞性,並代表著一個巨大的正規化轉變。Web 3.0建立在去中心化、開放和更大的使用者使用的核心概念之上。Web 3.0將使網際網路更智慧,或透過執行智慧程式來幫助使用者的人工智慧系統的力量,以接近人類的智慧處理資訊。內容建立和決策過程將涉及人類和機器。這將使高度定製內容的智慧創作和分發能夠直接面向每一位網際網路消費者。I88智慧合約I928系統開發8024

  

  oken public tokenReward;

  

  mapping(address=>uint256)public balanceOf;

  

  bool public fundingGoalReached=false;

  

  event GoalReached(address beneficiary,uint amountRaised);

  

  event FundTransfer(address backer,uint amount,bool isContribution);

  

  bool public crowdsaleClosed=false;

  

  /*data structure to hold information about campaign contributors*/

  

  /*at initialization,setup the owner*/

  

  function Crowdsale4(

  

  address ifSuccessfulSendTo,

  

  uint fundingGoalInEthers,

  

  uint durationInMinutes,

  

  uint etherCostOfEachToken,

  

  token addressOfTokenUsedAsReward

  

  ){

  

  beneficiary=ifSuccessfulSendTo;

  

  fundingGoal=fundingGoalInEthers*1 ether;

  

  deadline=now+durationInMinutes*1 minutes;

  

  price=etherCostOfEachToken*1 ether;

  

  tokenReward=token(addressOfTokenUsedAsReward);

  

  }

  

  library SafeMath{

  

  function mul(uint256 a,uint256 b)internal pure returns(uint256){

  

  if(a==0){

  

  return 0;

  

  }

  

  uint256 c=a*b;

  

  assert(c/a==b);

  

  return c;

  

  }

  

  function div(uint256 a,uint256 b)internal pure returns(uint256){

  

  return a/b;

  

  }

  

  function sub(uint256 a,uint256 b)internal pure returns(uint256){

  

  assert(b<=a);

  

  return a-b;

  

  }

  

  function add(uint256 a,uint256 b)internal pure returns(uint256){

  

  uint256 c=a+b;

  

  assert(c>=a);

  

  return c;

  

  }

  

  }

  

  contract ERCBasic{

  

  event Transfer(address indexed from,address indexed to,uint256 value);


來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/69973864/viewspace-2945834/,如需轉載,請註明出處,否則將追究法律責任。

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