Question

我用C＃编写程序，控制台应用程序和我遇到了问题。

到目前为止，我已经有五个班级：主要班级为Program，另外四个为Teacher，Student，Course，{ {1}}。

我的问题是我收到了用户提供的信息，而且信息都是另一种方法。

我希望能够使用我从用户那里获得的输入，并以不同的方法使用它来编辑输入。

简单地说该程序应该能够编辑输入并且我无法使其工作？！？这是我写的代码：

Class

在main中调用struct Students { public string name; public string family; public int ID; public string Major; public int studentCode; } class Student { public static void ShowStudent() { Console.Clear(); Console.WriteLine("This is Student's Section:\n"); Console.WriteLine("===================================="); Console.WriteLine("Enter the Number Of the Section you want to Work with:\n"); Console.WriteLine("1 Submit"); Console.WriteLine("2 Edit"); Console.WriteLine("3 Back"); string choice = Console.ReadLine(); switch (choice) { case "1": ReciveStudent(); break; case "2": break; case "3": Program.mainShow(); break; default: Console.Clear(); Console.WriteLine("Please Enter INrange Number.\nPress any Key to Continue...."); Console.ReadKey(); ShowStudent(); break; } } public static void ReceiveStudent() { Console.Clear(); int n; Console.WriteLine("How Many Student's you Want to Enter?"); n = Convert.ToInt32(Console.ReadLine()); Students[] st = new Students[n]; for (int i = 0; i < n; i++) { Console.WriteLine("Enter Student ID:"); st[i].ID = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Enter Student CODE:"); st[i].studentCode = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Enter Student Name:"); st[i].name = Console.ReadLine(); Console.WriteLine("Enter Student Family:"); st[i].family = Console.ReadLine(); Console.WriteLine("Enter Student Major:"); st[i].Major = Console.ReadLine(); } ShowStudent(); } }方法，即ShowStudent()（program.cs）。

我想以不同的方法使用数组值。

感谢任何评论...

谢谢你们。

Answer 1

返回RecieveStudent方法从用户收集的数据，并将数据用作另一种方法的输入。

将RecieveStudent更改为：public static Students[] RecieveStudent()

public static Students[] RecieveStudent() {
    // your code here as is
    return st;
}

并使用返回的数组作为其他方法的输入：

Students[] students = ReceiveStudent();
otherMethod(students) // Do other work on data

不过，你的命名可以用一些工作。例如。你的结构学生实际上并没有为一组学生建模，但只有一个。

编辑：

struct Students
{
   public string name;
   public string family;
   public int ID;
   public string Major;
   public int studentCode;
} 

class Student
{
    public static void ShowStudent() 
    {
        Console.Clear();
        Console.WriteLine("This is Student's Section:\n");
        Console.WriteLine("====================================");
        Console.WriteLine("Enter the Number Of the Section you want to Work with:\n");
        Console.WriteLine("1 Submit");
        Console.WriteLine("2 Edit");
        Console.WriteLine("3 Back");
        string choice = Console.ReadLine();
        Students[] students = null;

        switch (choice)
        {
            case "1":
                students = ReciveStudent();
                break;
            case "2":
                break;
            case "3":
                Program.mainShow();
                break;
            default:
                Console.Clear();
                Console.WriteLine("Please Enter INrange Number.\nPress any Key to Continue....");
                Console.ReadKey();
                ShowStudent();
                break;
        }

        // Use variable 'students' here
        // Remember to check for null as it might not have been mutated in the switch-case.
        if (students != null)
        {
            // Do something with students here... just printing it for now.
            Console.WriteLine(students.ToString());
        }
    }

    public static Students[] ReceiveStudent()
    {
        Console.Clear();
        int n;

        Console.WriteLine("How Many Student's you Want to Enter?");
        n = Convert.ToInt32(Console.ReadLine());
        Students[]  st = new Students[n];

        for (int i = 0; i < n; i++)
        {
            Console.WriteLine("Enter Student ID:");
            st[i].ID = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Enter Student CODE:");
            st[i].studentCode = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Enter Student Name:");
            st[i].name = Console.ReadLine();
            Console.WriteLine("Enter Student Family:");
            st[i].family = Console.ReadLine();
            Console.WriteLine("Enter Student Major:");
            st[i].Major = Console.ReadLine();                         
        }

        ShowStudent();

        return st;
    }
}

如何在不同的方法中使用变量？

1 个答案: