github.com/iotexproject/iotex-core@v1.14.1-rc1/action/protocol/execution/testdata-istanbul/self-destruct.sol (about)

     1  pragma solidity >0.6.0;
     2  contract Storage {
     3      address payable private owner;
     4      uint256 number;
     5      
     6      constructor() {
     7          owner = payable(msg.sender);
     8      }
     9  
    10      function store(uint256 num) public {
    11          number = num;
    12      }
    13  
    14      function retrieve() public view returns (uint256){
    15          return number;
    16      }
    17   
    18      function close() public { 
    19          selfdestruct(owner); 
    20      }
    21  }