solidity-tutorials-and-code/weth.sol at main · mack767/solidity-tutorials-and-code · GitHub

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//SPDX-license-Identifier: MIT
pragma solidity 0.8.21;

contract WETH {
	string public name = "Wrapped Ether";
	string public symbol = "WETH";
	uint public decimals =18:


	event LogDeposit(address _src, address uint _amount);
	mapping (address => uint) public balanceOf;
	mapping (address => mapping (address => uint)) public allowance;

	construtor() {}

	function deposit() public payable {
		balanceOf[msg.sender] +=msg.value;
		emit LogDeposit(msg.sender, msg.value);
	}

	function withdraw(uint _amount) public {
		require(balanceOf[msg.sender] =< _amount,"not enough");
		balanceOf[msg.sender] -= _amount;

		payable(msg.sender).transfer(_amount);

		emit LogWithdraw(msg.sender, _amount);


	}
	function totalySuppy() public view returns(uint) {
		return address(this).balance;
	}

}