使用remix發佈部署發幣智能合約

時間 2019-12-06

標籤使用 remix 發佈部署智能合約简体版

原文原文鏈接

Remix是一個基於瀏覽器的編譯器和IDE，使用戶可以使用Solidity語言構建以太坊合約並調試事務。git

在上一篇文章已經成功的使用代碼講智能合約編譯而且發佈部署到了鏈上，但是在部署發幣的智能合約不行，因而另找方法➡️remixgithub

git clone https://github.com/ethereum/remix-ide.git

cd remix-ide

npm install   //可能會出錯多試幾回，網絡問題。

sudo npm run setupremix  

npm run build

npm start

瀏覽器打開： http://127.0.0.1:8080web

發幣的智能合約

pragma solidity 0.4.24;
contract SafeMath {
  function safeSub(uint256 a, uint256 b) internal returns (uint256) {
    assert(b <= a);
    return a - b;
  }
  function safeAdd(uint256 a, uint256 b) internal returns (uint256) {
    uint256 c = a + b;
    assert(c>=a && c>=b);
    return c;
  }
}
contract owned {
    address public owner;
    constructor() public {
        owner = msg.sender;
    }
    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }
    function transferOwnership(address newOwner) onlyOwner public {
        if (newOwner != address(0)) {
        owner = newOwner;
      }
    }
}
contract HEAToken is SafeMath,owned {
    string public name="C-money";
    string public symbol="$$";
    uint8 public decimals = 18;
    uint256 public totalSupply=30000000000000; 
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;
    mapping (address => bool) public frozenAccount;
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Freeze(address indexed from, bool frozen);
    constructor(uint256 initialSupply, string tokenName, string tokenSymbol) public {
        totalSupply = initialSupply * 10 ** uint256(decimals);
        balanceOf[msg.sender] = totalSupply;
        name = tokenName;
        symbol = tokenSymbol;
    }
    function _transfer(address _from, address _to, uint256 _value) internal {
      require(_to != 0x0);
      require(_value > 0);
      require(balanceOf[_from] >= _value);
      require(balanceOf[_to] + _value > balanceOf[_to]);
      require(!frozenAccount[_from]);
      require(!frozenAccount[_to]);
      uint previousBalances = SafeMath.safeAdd(balanceOf[_from] , balanceOf[_to]);
      balanceOf[_from] = SafeMath.safeSub( balanceOf[_from] , _value);
      balanceOf[_to] =SafeMath.safeAdd(balanceOf[_to] , _value);
      emit Transfer(_from, _to, _value);
      assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
    }
    function transfer(address _to, uint256 _value) public returns (bool success) {
        _transfer(msg.sender, _to, _value);
        return true;
    }
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
      require(_to != 0x0);
      require(_value > 0);
      require(balanceOf[_from] >= _value);
      require(balanceOf[_to] + _value > balanceOf[_to]);
      require(!frozenAccount[_from]);
      require(!frozenAccount[_to]);
      require(_value <= allowance[_from][msg.sender]); 
      uint previousBalances = SafeMath.safeAdd(balanceOf[_from] , balanceOf[_to]);
      allowance[_from][msg.sender] = SafeMath.safeSub(allowance[_from][msg.sender] , _value);
      balanceOf[_from] = SafeMath.safeSub( balanceOf[_from] , _value);
      balanceOf[_to] =SafeMath.safeAdd(balanceOf[_to] , _value);
      assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
      emit Transfer(_from, _to, _value);
      return true;
    }
    function approve(address _spender, uint256 _value) public returns (bool success) {
        require(_spender != 0x0);
        require(_value > 0);
        require(balanceOf[_spender] >= _value);
        require(!frozenAccount[msg.sender]);
        require(!frozenAccount[_spender]);
        allowance[msg.sender][_spender] = _value;
        return true;
    }
    function freezeMethod(address target, bool frozen) onlyOwner public returns (bool success){
        require(target != 0x0);
        frozenAccount[target] = frozen;
        emit Freeze(target, frozen);
        return true;
    }
}