easychen · March 28, 2018 04:52 · Mar 28, 2018
diff --git a/token.sol b/token.sol
@@ -0,0 +1,80 @@
+pragma solidity ^0.4.16;
+
+interface tokenRecipient { function receiveApproval (address _from, uint256 _value, address _token, bytes _extraData) external; }
+
+contract FangTangCoin {
+    string public name;
+    string public symbol;
+    uint8 public decimals = 18;
+    uint256 public totalSupply;
+    address private creator;
+
+    mapping (address => uint256) public balanceOf;
+    mapping (address => mapping (address => uint256)) public allowance;
+
+    event Transfer(address indexed from, address indexed to, uint256 value);
+
+
+    function FangTangCoin(
+        uint256 initialSupply,
+        string tokenName,
+        string tokenSymbol
+    ) public {
+        totalSupply = initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
+        balanceOf[msg.sender] = totalSupply;                // Give the creator all initial tokens
+        name = tokenName;                                   // Set the name for display purposes
+        symbol = tokenSymbol;                               // Set the symbol for display purposes
+        creator = msg.sender;
+    }
+
+    function _transfer(address _from, address _to, uint _value) internal {
+        require(_to != 0x0);
+        require(balanceOf[_from] >= _value);
+        require(balanceOf[_to] + _value > balanceOf[_to]);
+        uint previousBalances = balanceOf[_from] + balanceOf[_to];
+        balanceOf[_from] -= _value;
+        balanceOf[_to] += _value;
+        emit Transfer(_from, _to, _value);
+        assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
+    }
+
+    function transfer(address _to, uint256 _value) public {
+        _transfer(msg.sender, _to, _value);
+    }
+
+    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
+        require(_value <= allowance[_from][msg.sender]);     // Check allowance
+        allowance[_from][msg.sender] -= _value;
+        _transfer(_from, _to, _value);
+        return true;
+    }
+
+    function approve(address _spender, uint256 _value) public
+        returns (bool success) {
+        allowance[msg.sender][_spender] = _value;
+        return true;
+    }
+
+    function buyToken() public payable returns (bool success){
+
+    uint256 weiAmount = msg.value;
+    uint256 tokens;
+    uint rate = 1000;
+    tokens = weiAmount * ( 10 ** uint256(decimals)/ 1000000000000000000 ) * rate ;
+
+    require(tokens > 0);  
+
+    _transfer(creator , msg.sender, tokens);
+    return true;
+    }   
+
+    function getETH() public 
+    {
+       require(address(this).balance > 0 && msg.sender == creator);
+         creator.transfer(address(this).balance);
+
+    } 
+
+
+
+}