Question

我的程序没有输入else语句。当我从5键入不同的数字时。只打印if语句我该如何解决这个问题？

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections;

namespace Question2
{
    class Program
    {
        static void Main(string[] args)
        {
            String ID = "5";
            Console.WriteLine("Enter Student ID");
            Console.ReadLine();

            string answer = "TFTTFTFFTF";
            ID = "TTFFTFTTFT";
            int count = 0;

            for (int i = 0; i < answer.Length; i++)
            {
                if (answer[i] == ID[i])
                {
                    count++;
                }
            }

            if (ID == "5")
            {
                Console.WriteLine("This student mark is");
                Console.WriteLine(count);
                Console.ReadLine();
            }
            else
            {
                Console.WriteLine("error no student with this ID");
                Console.ReadLine();
            }
        }
    }
}

Answer 1

您正在更改ID变量

ID = "TTFFTFTTFT";

如果您想从用户那里收到学生ID，您应该保存它。将一个变量用于StudentId，将另一个变量用于他填写的答案。

Console.WriteLine("Enter Student ID");
String ID = Console.ReadLine();         

string answer = "TFTTFTFFTF";
string studentAnswers = "TTFFTFTTFT";

int count = 0;
for (int i = 0; i < answer.Length; i++)
{
    if (answer[i] == studentAnswers[i])
    {
        count++;
    }
}

if (ID == "5")
{
    Console.WriteLine("This student mark is");
    Console.WriteLine(count);
}
else
{
    Console.WriteLine("error no student with this ID");
}
Console.ReadLine();

重要说明：调试器是必须使用工具，使用它！

其他声明不起作用。仅从IF语句打印

1 个答案: