如何从文本文件中逐行读取? [英] How to read from a text file line by line?

问题描述

您好，我需要阅读一个文本文件.

文本文件中只有2行.而且我需要以字符串形式逐行读取两者.阅读后，我想使用它(连接).

例如，每一行都表示为string1和string2.我将串联一个这样的句子

您的电话号码是"+ string1 +"，而您的端口是"+ string2".


我的问题是，我该怎么做?我读为数组?并将其转换为字符串?或反之亦然?

我真的很困惑.

预先感谢.

Hello, I need to read from a text file.

There are only 2 lines in the text file. And I need to read both, line by line as a string. After reading it, I want to use it (concatenate).

For example, each line is represented as string1 and string2. I will concatenate to make a sentence like

"Your number is " + string1 + " and your port is " + string2".


My question is, how do I do it? I read it as array? And convert it to string? Or vice versa?

I''m really confused.

Thanks in advance.

推荐答案

public static string MyMethod(string filename)
{
    string result = string.Empty;
    try
    {
        string[] lines = File.ReadAllLines(filename);
        result = "Your number is " + lines[0] + " and your port is " + lines[1] + ".";
    }
    catch (FileNotFoundException e)
    {
        // Deal with it!
    }
    catch (IndexOutOfRangeException e)
    {
        // Deal with it too! (there aren't two lines in the file)
    }
    // Catch other possible Exceptions here!
    return result;
}

在下面的示例中使用Stringbuilder ...全部

C#逐行读取文本文件 [

Use Stringbuilder with below example...that''s all

C# Read Text File Line-by-Line[^]

Stringbuilder sample code

StringBuilder sb = new StringBuilder();
int count = lines1.Length;
for (int i = 0; i < count; i++)
{
string line = lines1[i];
sb.AppendLine(line);
}
Console.WriteLine(sb.ToString());

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