Question

我是C＃和VS的新手，我只是尝试使用Console.WriteLine（...）打印一行，但它只显示在命令提示符中。有没有办法在输出窗口中显示输出？

编辑：这是一个控制台应用程序。

另外，如何访问命令行以运行程序？我只能弄清楚如何使用F5运行，但如果我需要输入参数，这将无效。

Answer 1

如果是ConsoleApplication，那么Console.WriteLine将编写控制台。如果您使用Debug.Print，它将打印到底部的输出标签。

如果要添加命令行参数，可以在项目属性中找到它。点击Project -> [YourProjectName] Properties... -> Debug -> Start Options -> Command line arguments。此处的文本将在运行时传递给您的应用程序。您也可以在构建之后运行它，方法是在构建它之后通过bin\Release或bin\Debug文件夹运行它，或者根据您的喜好运行它。我发现以这种方式测试各种参数比较容易，而不是每次都设置命令行参数。

Answer 2

Yes I ran into this problem too, my first 2 days with VS2012. Where is my console output? it flashes and disappears. Mystified by usefull examples like

https://code.msdn.microsoft.com/101-LINQ-Samples-3fb9811b

Ok, indeed @martynaspikunas .. trick you can replace Console.WriteLine() by Debug.WriteLine() to see it in the IDE. It will stay there, nice.

But sometimes you have to change a lot of places in existing code to do that.

I did find a few alternatives.. How about a single

Console.ReadKey();

in Program.cs ? The console will wait for you, it can scroll..

I also like to use the Console output in my Winforms contexts:

 class MyLogger : System.IO.TextWriter
    {
        private RichTextBox rtb;
        public MyLogger(RichTextBox rtb) { this.rtb = rtb; }
        public override Encoding Encoding { get { return null; } }
        public override void Write(char value)
        {
            if (value != '\r') rtb.AppendText(new string(value, 1));
        }
    }

Add this class after your main form class. Then plug it in, using the following redirect statement in the constructor, after InitializeComponent() is called:

 Console.SetOut(new MyLogger(richTextBox1));

As a result of this, all your Console.WriteLine() will appear in the richTextBox.

Sometimes I use it to redirect to a List to report Console later, or dump it to a textfile.

Note: the MyLogger code snippet was put here by Hans Passant in 2010,

Bind Console Output to RichEdit

Answer 3

这是一个保持控制台及其输出的简单技巧：

int main ()
{
    cout << "Hello World" << endl ;

    // Add this line of code before your return statement and the console will stay up
    getchar() ;  

    return 0;
}

Answer 4

using System;
#region Write to Console
/*2 ways to write to console
 concatenation
 place holder syntax - most preferred
 Please note that C# is case sensitive language.
*/
#region
namespace _2__CShrp_Read_and_Write
{
    class Program
    {
        static void Main(string[] args)
        {

            // Prompt the user for his name
            Console.WriteLine("Please enter your name");

            // Read the name from console
            string UserName = Console.ReadLine();
            // Concatenate name with hello word and print
            //Console.WriteLine("Hello " + UserName);

            //place holder syntax
            //what goes in the place holder{0}
            //what ever you pass after the comma i.e. UserName
            Console.WriteLine("Hello {0}", UserName);
            Console.ReadLine();
        }
    }
}
I hope this helps

Visual Studio 2013 - 如何在控制台中查看输出？

4 个答案: