erc20-at-course.sol

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

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract WoWToken is ERC20 {
    uint256 public _totalSupply = 10000;

    constructor() ERC20("WoWToken", "WOW") {
        _mint(msg.sender, _totalSupply);
    }

    function buyCoin(address _to, uint256 _amount) public {
        _mint(_to, _amount);
    }
}