Created
November 10, 2021 01:54
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example reciving ether #1
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| pragma solidity ^0.8.9; | |
| import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; | |
| import "@openzeppelin/contracts/access/Ownable.sol"; | |
| // https://solidity-by-example.org/sending-ether/ | |
| contract Neetcoin is ERC20, Ownable { | |
| constructor(string memory name_, string memory symbol_) ERC20(name_, symbol_) public {} | |
| function mint(address account, uint256 amount) public onlyOwner { | |
| _mint(account, amount); | |
| } | |
| fallback() external payable { | |
| sell(); | |
| } | |
| function sell() payable public { | |
| address owner_ = owner(); | |
| address whoToSend = msg.sender; | |
| uint256 ntcToMint = msg.value; | |
| Neetcoin.mint(whoToSend, ntcToMint); | |
| bool sent = owner_.send(msg.value); | |
| require(sent, "Failed to send Ether"); | |
| } | |
| } |
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