swap-contracts-module/contracts/Greeter.sol

24 lines
520 B
Solidity

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.7.0;
import "hardhat/console.sol";
contract Greeter {
string greeting;
constructor(string memory _greeting) {
console.log("Deploying a Greeter with greeting:", _greeting);
greeting = _greeting;
}
function greet() public view returns (string memory) {
return greeting;
}
function setGreeting(string memory _greeting) public {
console.log("Changing greeting from '%s' to '%s'", greeting, _greeting);
greeting = _greeting;
}
}