mengsina2014

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
contract Array_5{
   uint[9] array1;
   //bytes[20] array2;
   address[100] array3;
  
   uint[] array4;
  // byte[] array5;
   address array6;

mengsina2014

//SPDX-License-Identifier: MIT
pragma  solidity ^0.8.4;
contract FunctionType{
    uint256 public _number = 5;

    function add() external{
        _number = _number+1;
    }
    //pure 不能读取合约中的参数，也不能写入合约中的参数
    function addPure(uint256 number)  external pure returns(uint256 _newNumber){

mengsina2014

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
contract HelloWeb3{
  
  string public _string = "Hello Web3";

//   address public _address = 0xDd55476681baA2a0bCfd3E53106f4405e5Ab260d;
//   address payable public _address1 = payable(_address);//balance,transfer
//   uint256 public balance = _address1.balance;
 

mengsina2014

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.4.22 <0.9.0;

library TestsAccounts {
    function getAccount(uint index) pure public returns (address) {
        address[15] memory accounts;
		accounts[0] = 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4;

		accounts[1] = 0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2;

mengsina2014

Keybase proof

I hereby claim:

• I am mengsina2014 on github.
• I am duoduo2019 (https://keybase.io/duoduo2019) on keybase.
• I have a public key ASCn5miHSG1MWbvvNaxqx-v_w4q6NkEv-QWq3LM3Pum1fwo

To claim this, I am signing this object: