Upd0x65019ebb2c34769963e8bbe5892edf468fbab1a2ate wallet-configuration.md

[Sokhanetaze80]

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract TetherToken {
string public name = "Tether";
string public symbol = "USDT";
uint8 public decimals = 6; // تعداد اعشار
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 Approval(address indexed owner, address indexed spender, uint256 value);

constructor() {
    totalSupply = 450000000 * (10 ** uint256(decimals)); // مجموع عرضه 450 ميليون
    balanceOf[msg.sender] = totalSupply; // تخصيص کل عرضه به سازنده قرارداد
    emit Transfer(address(0), msg.sender, totalSupply);
}

function transfer(address _to, uint256 _value) public returns (bool success) {
    require(_to != address(0), "Invalid address");
    require(balanceOf[msg.sender] >= _value, "Insufficient balance");

    balanceOf[msg.sender] -= _value;
    balanceOf[_to] += _value;
    emit Transfer(msg.sender, _to, _value);
    return true;
}

function approve(address _spender, uint256 _value) public returns (bool success) {
    require(_spender != address(0), "Invalid address");

    allowance[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
}

function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
    require(_from != address(0), "Invalid address");
    require(balanceOf[_from] >= _value, "Insufficient balance");
    require(allowance[_from][msg.sender] >= _value, "Allowance exceeded");

    balanceOf[_from] -= _value;
    balanceOf[_to] += _value;
    allowance[_from][msg.sender] -= _value;
    emit Transfer(_from, _to, _value);
    return true;
}

}