Transaction Hash:
Block:
19538863 at Mar-29-2024 09:47:23 AM +UTC
Transaction Fee:
0.001062769833690568 ETH
$3.28
Gas Used:
44,474 Gas / 23.896430132 Gwei
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x82A77710...4497D33eF | |||||
0xce88519D...a6E81ED6F |
0.01 Eth
Nonce: 0
|
0.008937230166309432 Eth
Nonce: 1
| 0.001062769833690568 | ||
0xDAFEA492...692c98Bc5
Miner
| (Flashbots: Builder) | 0.07790805152342443 Eth | 0.07793073326342443 Eth | 0.00002268174 |
Execution Trace
DOGZ.approve( _spender=0x000000000022D473030F116dDEE9F6B43aC78BA3, _value=115792089237316195423570985008687907853269984665640564039457584007913129639935 ) => ( success=True )
approve[DOGZ (ln:57)]
/** *Submitted for verification at Etherscan.io on 2020-09-19 */ /** *Submitted for verification at Etherscan.io on 2020-09-19 */ pragma solidity ^0.4.16; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract DOGZ { string public name; string public symbol; uint8 public decimals = 18; // 18 是建议的默认值 uint256 public totalSupply; mapping (address => uint256) public balanceOf; // mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed from, address indexed to, uint256 value); event Burn(address indexed from, uint256 value); function DOGZ(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, 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; 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 approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; Burn(msg.sender, _value); return true; } function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); require(_value <= allowance[_from][msg.sender]); balanceOf[_from] -= _value; allowance[_from][msg.sender] -= _value; totalSupply -= _value; Burn(_from, _value); return true; } }