C# switch循环,将每种情况的总数相加

发布于 2024-10-26 13:23:08 字数 1998 浏览 4 评论 0原文

我有 2 个代码想要合并为 1 个,但在执行此操作时遇到了很多麻烦。代码应该询问团体编号,然后询问他们的捐赠金额,然后循环返回,直到他们按 0。一旦他们按 0,它应该显示所有团体的总额。这是 2 个不同的代码

code 1

using System;
public class TotalPurchase
{
    public static void Main()
    {
        double donation;
        double total = 0;
        string inputString;
        const double QUIT = 0;
        Console.WriteLine("Please enter the amount of the contribution: ");
        inputString = Console.ReadLine();
        donation = Convert.ToDouble(inputString);
        while(donation != QUIT)
        {
            total += donation;
            Console.WriteLine("Enter next donation amount, or " +
                QUIT + " to quit ");
            inputString = Console.ReadLine();
            donation = Convert.ToDouble(inputString);
        }
        Console.WriteLine("Your total is {0}", total.ToString("C"));
    }
}

code 2

using System;
namespace donate
{

class donate
{
    public static void Main()
    {


        begin:
        string group;
        int myint;
        Console.WriteLine("Please enter group number (4, 5, or 6)");
        Console.WriteLine("(0 to quit): ");
        group = Console.ReadLine();
        myint = Int32.Parse(group);

            switch (myint)
            {
                case 0:
                    Console.WriteLine("Bye.");
                    break;
                case 4:
                case 5:
                case 6:
                     double donation;

                     string inputString;

                    Console.WriteLine("Please enter the amount of the contribution: ");
                    inputString = Console.ReadLine();
                    donation = Convert.ToDouble(inputString);
                    goto begin;
                default:
                    Console.WriteLine("Incorrect grade number.", myint);
                    goto begin;
                }




        }       
    }
}

所以基本上我想使用第二个代码找到每组的总数。

任何帮助将不胜感激。

I have 2 codes that I want to combine into 1 and am having a lot of trouble doing it. The code should ask for the group number then their donation amount and loop back until they press 0. Once they press 0 it should show the total for all groups. Here are the 2 different codes

code 1

using System;
public class TotalPurchase
{
    public static void Main()
    {
        double donation;
        double total = 0;
        string inputString;
        const double QUIT = 0;
        Console.WriteLine("Please enter the amount of the contribution: ");
        inputString = Console.ReadLine();
        donation = Convert.ToDouble(inputString);
        while(donation != QUIT)
        {
            total += donation;
            Console.WriteLine("Enter next donation amount, or " +
                QUIT + " to quit ");
            inputString = Console.ReadLine();
            donation = Convert.ToDouble(inputString);
        }
        Console.WriteLine("Your total is {0}", total.ToString("C"));
    }
}

code 2

using System;
namespace donate
{

class donate
{
    public static void Main()
    {


        begin:
        string group;
        int myint;
        Console.WriteLine("Please enter group number (4, 5, or 6)");
        Console.WriteLine("(0 to quit): ");
        group = Console.ReadLine();
        myint = Int32.Parse(group);

            switch (myint)
            {
                case 0:
                    Console.WriteLine("Bye.");
                    break;
                case 4:
                case 5:
                case 6:
                     double donation;

                     string inputString;

                    Console.WriteLine("Please enter the amount of the contribution: ");
                    inputString = Console.ReadLine();
                    donation = Convert.ToDouble(inputString);
                    goto begin;
                default:
                    Console.WriteLine("Incorrect grade number.", myint);
                    goto begin;
                }




        }       
    }
}

So basically I want to find the total for each group using the 2nd code.

Any help would be greatly appreciated.

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评论(2

清眉祭 2024-11-02 13:23:08

不要那样使用 goto。只需使用另一个 while 循环,就像您在第一个代码段中所做的那样。

更简洁地说:

if (myInt > 3 && myInt < 7) { ... }

而不是使用 switch 语句。

基本上,用于汇总捐赠金额的代码就可以解决问题,因此只需将其放在处理组编号的类似循环中即可。如果您这样做,您将需要使用不同的输入来表示捐赠的结束与输入的完全结束。如果应用程序说“输入 0 退出输入”,然后是“输入 0 退出捐赠输入”,则会令人困惑。

Don't use goto like that. Just use another while loop like you did in the first code segement.

It would be much more concise to say:

if (myInt > 3 && myInt < 7) { ... }

instead of using that switch statement.

Basically your code for summing up the donation amount does the trick, so just stick that inside a similar loop that handles what the group number is. If you do this you're going to want to use a different input to signify the end of donations vs the end of input altogether. It would be confusing if the application said "Enter 0 to quit input", followed by "Enter 0 to quit donation input".

吻安 2024-11-02 13:23:08

您已经非常接近代码 2。如果您将代码 2 放入 while 循环中,它就可以工作了!

我在这里为您编写的唯一代码是在 while 循环外部声明 myint 并将其初始化为非零值。

    double total = 0;
    int myint = -1;

    while (myint != 0)
    {
        string group;

        Console.WriteLine("Please enter group number (4, 5, or 6)");
        Console.WriteLine("(0 to quit): ");
        group = Console.ReadLine();
        myint = Int32.Parse(group);

        switch (myint)
        {
            case 0:
                Console.WriteLine("Bye.");
                break;
            case 4:
            case 5:
            case 6:
                double donation;
                string inputString;
                Console.WriteLine("Please enter the amount of the contribution: ");
                inputString = Console.ReadLine();
                donation = Convert.ToDouble(inputString);
                total += donation;
                break;
            default:
                Console.WriteLine("Incorrect grade number.", myint);
                break;
        }
    }

    Console.WriteLine("Your total is {0}", total.ToString("C"));

You are very close with Code 2. If you put Code 2 inside while loop it works!

The only code I have written for you here is declared myint outside the while loop and initialised it to a non-zero value.

    double total = 0;
    int myint = -1;

    while (myint != 0)
    {
        string group;

        Console.WriteLine("Please enter group number (4, 5, or 6)");
        Console.WriteLine("(0 to quit): ");
        group = Console.ReadLine();
        myint = Int32.Parse(group);

        switch (myint)
        {
            case 0:
                Console.WriteLine("Bye.");
                break;
            case 4:
            case 5:
            case 6:
                double donation;
                string inputString;
                Console.WriteLine("Please enter the amount of the contribution: ");
                inputString = Console.ReadLine();
                donation = Convert.ToDouble(inputString);
                total += donation;
                break;
            default:
                Console.WriteLine("Incorrect grade number.", myint);
                break;
        }
    }

    Console.WriteLine("Your total is {0}", total.ToString("C"));
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