Solidity函数(BitDegree)的编程

Question

作为比特学位学习扎实课程的一部分。我被要求做以下工作：

1. 以允许设置名称值的方式修改函数setName

2.创建一个名为increaseCounter的新函数，每当调用计数器时，它将使计数器的值增加10。

我已经尝试了很多事情来命名，但有这么多的问题，如果有人能帮我解决这个问题，我会非常感激，这是如此基本，但出于某种原因，没有什么工作：这是当前的代码

pragma solidity ^0.4.16;

contract FunctionTest {
bool public foo = true;
string public name;
uint256 public counter = 0;

function setName() public {
    //
}

function writeToStorage() {
    foo = !foo;
}

function readFromStorageConstant() public constant returns (bool) {
    return foo;
}

function readFromStorageView() public view returns (bool) {
    return foo;
}

}

Answer 1

由于某些原因，它需要将变量“name”初始化为字符串，以使其提交。

pragma solidity ^0.4.16;

contract FunctionTest {
  bool public foo = true;
  string public name="ChuckNorris";
  uint256 public counter = 0;

  function setName(string _name) public {
    name = _name;
  }

  function increaseCounter() public {
    counter += 10;
  }

  function writeToStorage() {
    foo = !foo;
  }

  function readFromStorageConstant() public constant returns (bool) {
    return foo;
  }

  function readFromStorageView() public view returns (bool) {
    return foo;
  }
}

Answer 2

确保你正在回答问题的两个部分。由于某些原因，在本课中，setName()函数在完成increaseCounter() function.Here之前不会显示您已经正确地完成了它，这是帮助我提升到下一个级别的解决方案。

pragma solidity ^0.4.16;

contract FunctionTest {
  bool public foo = true;
  string public name;
  uint256 public counter = 0;

  function setName(string _name) public {
    name = _name;
  }

  function increaseCounter() public {
    counter += 10;
  }

  function writeToStorage() {
    foo = !foo;
  }

  function readFromStorageConstant() public constant returns (bool) {
    return foo;
  }

  function readFromStorageView() public view returns (bool) {
    return foo;
  }

  funciton increaseCounter() {
    counter += 10; } 
}

Answer 3

应该很直截了当。

pragma solidity ^0.4.16;

contract FunctionTest {
  bool public foo = true;
  string public name;
  uint256 public counter = 0;

  function setName(string _name) public {
    name = _name;
  }

  function increaseCounter() public {
    counter += 10;
  }

  function writeToStorage() {
    foo = !foo;
  }

  function readFromStorageConstant() public constant returns (bool) {
    return foo;
  }

  function readFromStorageView() public view returns (bool) {
    return foo;
  }
}