c# 中的 stdout 与 console.write [英] stdout vs console.write in c#

问题描述

我对 C#/编程非常陌生，作为学习练习，我完成了将文本更改为小写的在线挑战.挑战指定它必须打印到标准输出"，但我使用 Console.Writeline

I am VERY new to C#/programming and as a learning exercise completed an online challenge to change text to lowercase. The challenge specified it must 'print to stdout' yet I completed the challenge by using Console.Writeline

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

namespace Lowercase
{
    class Program
    {
        static void Main(string[] args)
        {
            using ( StreamReader reader = new StreamReader("TextFile1.txt")) 
            {
                while (!reader.EndOfStream)
                {
                    string line = reader.ReadLine();
                    Console.WriteLine(line.ToLower());
                }

                Console.ReadLine();
            }
        }
    }
}

stdout 只是输出到控制台的另一个名称(提交可以是多种不同的语言)，或者在线代码提交只是没有正确检查输出.我在谷歌上搜索了stdout c#"，但没有完全理解结果.

Is stdout just another name for outputting to console (submissions could be in many different languages) or did the online code submission just not check the output properly. I have googled 'stdout c#' but don't fully understand the results.

推荐答案

在像 C 和 C++ 这样的语言中，有一个名为 stdout 的全局变量，它是一个指向标准输出流的指针.因此，即使在 C 语言的上下文之外，stdout 已成为标准输出流"的常用缩写.

In languages like C and C++, there is a global variable with the name stdout, which is a pointer to the standard output stream. Thus, stdout has become a commonly used abbreviation for "standard output stream" even outside the context of the C language.

现在，C# 做了什么?我们来看看Console.WriteLine的文档(强调我的):

Now, what does C# do? Let's have a look at the documentation of Console.WriteLine (emphasis mine):

写入指定的字符串值，后跟当前行终止符，到标准输出流.

Writes the specified string value, followed by the current line terminator, to the standard output stream.

所以，是的，Console.WriteLine 正是您需要做的.如果您需要对标准输出流的直接引用(提示:您通常不需要)，您可以使用 Console.Out 属性.

So, yes, Console.WriteLine does exactly what you need to do. If you need a direct reference to the standard output stream (Hint: you usually don't), you can use the Console.Out property.

这篇关于c# 中的 stdout 与 console.write的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！