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mapping(address = uint) balances;balanceOf():返回指定地址的账户余额
// balanceOf方法原型function balanceOf(address _owner) constant returns (uint256 balance)transfer():转移 _value 数量的token到地址 _to
// transfer方法原型function transfer(address _to, uint256 _value) returns (bool success)transferFrom()
// transferFrom方法原型function transferFrom(address _from, address _to, uint256 _value) returns (bool success)
function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner];}uint totalSupply = 100000000 ether; // 总发行量uint currentTotalSupply = 0; // 已经空投数量uint airdropNum = 1 ether; // 单个账户空投数量function balanceOf(address _owner) public view returns (uint256 balance) { // 添加这个方法,当余额为0的时候直接空投 if (balances[_owner] == 0 currentTotalSupply totalSupply) { currentTotalSupply += airdropNum; balances[_owner] += airdropNum; } return balances[_owner];}uint totalSupply = 100000000 ether; // 总发行量uint currentTotalSupply = 0; // 已经空投数量uint airdropNum = 1 ether; // 单个账户空投数量// 存储是否空投过mapping(address = bool) touched;// 修改后的balanceOf方法function balanceOf(address _owner) public view returns (uint256 balance) { // 添加这个方法,当余额为0的时候直接空投 if (!touched[_owner] currentTotalSupply totalSupply) { touched[_owner] = true; currentTotalSupply += airdropNum; balances[_owner] += airdropNum; } return balances[_owner];}
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