编译器
0.8.25+commit.b61c2a91
文件 1 的 2:16b.sol
pragma solidity ^0.8.25;
import './SafeMath.sol';
contract SeizeBits{
mapping (address => uint) public balances;
mapping (address => mapping (address=>uint)) public allowance;
uint public totalSupply = 100000000 * 10 ** 18;
string public name = "Seize Bits";
string public symbol = "16B";
uint public decimals = 18;
constructor(){
balances[msg.sender] = totalSupply;
}
function balanceOf(address owner) public view returns (uint){
return balances[owner];
}
event Transfer(address indexed from, address indexed to, uint value);
event Approval(address indexed owner, address indexed spender, uint value);
function transfer(address to, uint value) public returns(bool){
require (balanceOf(msg.sender) >= value, 'balance too low');
balances[to] = balances[to]+ value;
balances[msg.sender] = balances[msg.sender]-value;
emit Transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) public returns(bool){
require(balanceOf(from)>=value, 'balance too low');
require(allowance[from][msg.sender] >= value, 'allowance to low');
balances[to] += value;
balances[from] -= value;
emit Transfer(from, to, value);
return true;
}
function approve(address spender, uint value) public returns(bool){
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
}
文件 2 的 2:SafeMath.sol
pragma solidity ^0.8.25;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
uint256 c = a / b;
return c;
}
}
{
"compilationTarget": {
"16b.sol": "SeizeBits"
},
"evmVersion": "cancun",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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