代码之家 › 专栏 › 技术社区 › Caleb

如何让C语言的程序对用户输入做出反应

readline while-loop c#

-2

Caleb · 技术社区 · 7 年前

下面是我的代码。当我按5时,我必须按回车键5次才能让程序写这行,按6根本不起作用。任何解决方案都将不胜感激。

            Boolean keepRunning = true;
            while (keepRunning = true)
            {
                if (Console.ReadLine() == "1")
                {
                    Console.WriteLine("Still running");
                }
                else if (Console.ReadLine() == "2")
                {
                    Console.WriteLine("Still running2");
                }
                else if (Console.ReadLine() == "3")
                {
                    Console.WriteLine("Still running3");
                }
                else if (Console.ReadLine() == "4")
                {
                    Console.WriteLine("Still running4");
                }
                else if (Console.ReadLine() == "5")
                {
                    Console.WriteLine("Still running5");
                }
                else if (Console.ReadLine() == "6")
                {
                    keepRunning = false;
                }
            }

2 回复 | 直到 7 年前

Mighty Badaboom Karthick Raju 7 年前

你在等待每个人的进入 Console.ReadLine();

你应该把你的while状态改成 keepRunning == true . 以您当前设置的版本 keepRunning 到 true 在你的情况下,这就是为什么看起来“6”不起作用;)

Boolean keepRunning = true;
while (keepRunning == true)
{
    string input = Console.ReadLine();

    if (input == "1")
    {
        Console.WriteLine("Still running");
    }
    else if (input == "2")
    {
        Console.WriteLine("Still running2");
    }
    else if (input == "3")
    {
        Console.WriteLine("Still running3");
    }
    else if (input == "4")
    {
        Console.WriteLine("Still running4");
    }
    else if (input == "5")
    {
        Console.WriteLine("Still running5");
    }
    else if (input == "6")
    {
        keepRunning = false;
    }
}

switch(input)
{
    case "1":
        Console.WriteLine("Still running");
        break;
    case "2":
        Console.WriteLine("Still running");
        break;
    case "3":
        Console.WriteLine("Still running");
        break;
    case "4":
        Console.WriteLine("Still running");
        break;
    case "5":
        Console.WriteLine("Still running");
        break;
    case "6":
        keepRunning = false;
        break;
    default:
        break;
}

Samvel Petrosov 7 年前

每次迭代只能读一次行。见下例:

string readLine = "";
Boolean keepRunning = true;
while (keepRunning)
{
    readLine= Console.ReadLine();
    switch readLine{
        case "1":
            Console.WriteLine("Still running");
            break;
        case "2":
            Console.WriteLine("Still running2");
            break;
        case "3":
            Console.WriteLine("Still running3");
            break;
        case "4":
            Console.WriteLine("Still running4");
            break;
        case "5":
            Console.WriteLine("Still running5");
            break;
        case "6":
            keepRunning = false;
            break;
    }
}