c# - 用 '\r\n' 分割文本

Question

我在关注这个 article

我想出了这段代码:

string FileName = "C:\\test.txt";

using (StreamReader sr = new StreamReader(FileName, Encoding.Default))
{
    string[] stringSeparators = new string[] { "\r\n" };
    string text = sr.ReadToEnd();
    string[] lines = text.Split(stringSeparators, StringSplitOptions.None);
    foreach (string s in lines)
    {
        Console.WriteLine(s);
    }
}

这是示例文本:

somet interesting text\n
some text that should be in the same line\r\n
some text should be in another line

这是输出:

somet interesting text\r\n
some text that should be in the same line\r\n
some text should be in another line\r\n

但我想要的是:

somet interesting textsome text that should be in the same line\r\n
some text should be in another line\r\n

我想我应该得到这个结果，但不知何故我遗漏了一些东西......

Answer 1

问题不在于拆分，而在于 WriteLine。使用 WriteLine 打印的字符串中的 \n 将产生“额外”行。

例子

var text = 
  "somet interesting text\n" +
  "some text that should be in the same line\r\n" +
  "some text should be in another line";

string[] stringSeparators = new string[] { "\r\n" };
string[] lines = text.Split(stringSeparators, StringSplitOptions.None);
Console.WriteLine("Nr. Of items in list: " + lines.Length); // 2 lines
foreach (string s in lines)
{
   Console.WriteLine(s); //But will print 3 lines in total.
}

要解决此问题，请在打印字符串之前删除 \n。

Console.WriteLine(s.Replace("\n", ""));