文件 1 的 1:WrappedFivebalance.sol
pragma solidity 0.8.7;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => bool) _isExcluded;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 _charityFee;
uint256 _devFee;
uint256 _walletFee;
uint256 _feeDivider;
uint256 private _totalSupply;
string private _name;
string private _symbol;
address _charityAddress;
address _devAddress;
address _walletAddress;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 8;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
{
_balances[from] = fromBalance - amount;
if(!_isExcluded[from] && !_isExcluded[to]) {
uint _cAmount = (amount * _charityFee) / _feeDivider;
uint _dAmount = (amount * _devFee) / _feeDivider;
uint _wAmount = (amount * _walletFee) / _feeDivider;
_balances[_charityAddress] += _cAmount;
_balances[_devAddress] += _dAmount;
_balances[_walletAddress] += _wAmount;
amount -= (_cAmount + _dAmount + _wAmount);
}
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _excludeAddress(address _address) internal {
_isExcluded[_address] = true;
}
function _removeFromExcludeAddress(address _address) internal {
_isExcluded[_address] = false;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract WrappedFivebalance is ERC20, Ownable {
constructor() ERC20("Wrapped Fivebalance", "WFBN") {
_charityAddress = 0x66B216e10ae3acb676986D0E29e79f60dc8f81f8;
_devAddress = 0x9a942d97dAdbfC88f9C7Edc8DcAc80FB61265598;
_walletAddress = 0xdbA77b4477a4d61D6dA41a8eeFB8E0ee7EA08c20;
_charityFee = 10;
_devFee = 5;
_walletFee = 10;
_feeDivider = 1000;
_mint(0x908D537870c088E9Ae99f8bE080f6A95f603866e, 3_000_000_000 * 10 ** decimals());
}
function mint(address to, uint256 amount) public onlyOwner {
_mint(to, amount);
}
function excludeAddress(address _address) external onlyOwner {
_excludeAddress(_address);
}
function removeFromExcludeAddress(address _address) external onlyOwner {
_removeFromExcludeAddress(_address);
}
function isAddressExcluded(address _address) external view returns (bool) {
return _isExcluded[_address];
}
function getCharityFees() external view returns (uint) {
return _charityFee;
}
function getDevFees() external view returns (uint) {
return _devFee;
}
function getWalletFees() external view returns (uint) {
return _walletFee;
}
function getFeeDivider() external view returns (uint) {
return _feeDivider;
}
function getCharityAddress() external view returns (address) {
return _charityAddress;
}
function getDevAddress() external view returns (address) {
return _devAddress;
}
function getWalletAddress() external view returns (address) {
return _walletAddress;
}
}