DAPP合約代幣流動性質押挖礦模式軟體開發方案

lxqy16688發表於2023-04-19

Web 3.0 最好的解釋就是,無處不在、去中心化、人工智慧和語義 Web 互動性。一些Web 3.0技術已經出現,例如支撐區塊鏈的去中心化概念。Web 3.0的其他含義尚未被理解,更不用說建立。

  

  Web 3.0 對無處不在的定義是指網際網路應該可以從任何地方、透過任何平臺、在任何裝置上訪問的想法。隨著數字的普及,平等的概念也隨之而來。如果 Web 3.0 無處不在,則意味著它不受限制。Web 3.0不是為少數人準備的,而是為多數人準備的。I88智慧合約I928系統開發8024

  

  contract Token {

  

  mapping(address => uint) public balances;

  

  mapping(address => mapping(address => uint)) public allowance;

  

  uint public totalSupply = 10000000000;

  

  string public name = 'TestToken';

  

  string public symbol = 'TEST';

  

  uint public decimals = 9;

  

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

  

  event Approval(address indexed owener, address indexed spender, uint value);

  

  constructor() {

  

  balances[msg.sender] = totalSupply;

  

  }

  

  function balanceOf(address owner) public view returns(uint) {

  

  return balances[owner];

  

  }

  

  pragma solidity >0.4.17;

  

  /**

  

  * @title SafeMath 數學安全函式

  

  * @dev Math operations with safety checks that throw on error.

  

  */

  

  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) {

  

  // 分母大於0在solidity合約中已經會自動判定了

  

  // assert(b > 0); // Solidity automatically throws when dividing by 0

  

  uint256 c = a / b;

  

  // assert(a == b * c + a % b); // There is no case in which this doesn't hold

  

  return c;

  

  }


來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/70029086/viewspace-2946708/,如需轉載,請註明出處,否則將追究法律責任。

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