String.Split方便的分隔符分割字符串在多个部分。

我应该如何去只在第一个分隔符分割字符串。例如。我有一个字符串

 时间：10：12：12 \ r \ N
 

和我想要一个数组看起来像

  {时间，10：12：12 \ r \ N}
 

解决方案

最好的方法取决于一点你要如何灵活的解析是，关于可能的额外空间和这样的。检查的具体格式规范，看看你需要什么。

  yourString.Split（新的char [] {'：'}，2）
 

会限制你们两个2子。然而，这并不在第二字符串的开头修剪的空间。你可以这样做，在第二次手​​术但拆分后。

  yourString.Split（新的char [] {'：'，''}，2，
    StringSplitOptions.RemoveEmptyEntries）
 

应该工作，但将打破，如果你试图分裂包含空格的头名。

  yourString.Split（新的String [] {：}，2，
    StringSplitOptions.None）;
 

将不正是你的描述，但实际上需要的空间是present。

  yourString.Split（新的String [] {：，：}，2，
    StringSplitOptions.None）;
 

使得空间可选的，但你还是要 TrimStart（）的情况下，一个以上的空间。

要保持格式有所灵活，和你的code可读，我建议使用第一个选项：

 的String []分割= yourString.Split（新的char [] {'：'}，2）;
//可选检查split.Length这里
拆分[1] =分裂[1] .TrimStart（）;
 

String.Split is convenient for splitting a string with in multiple part on a delimiter.

How should I go on splitting a string only on the first delimiter. E.g. I've a String

"Time: 10:12:12\r\n"

And I'd want an array looking like

{"Time","10:12:12\r\n"}

The best approach depends a little on how flexible you want the parsing to be, with regard to possible extra spaces and such. Check the exact format specifications to see what you need.

yourString.Split(new char[] { ':' }, 2)

Will limit you two 2 substrings. However, this does not trim the space at the beginning of the second string. You could do that in a second operation after the split however.

yourString.Split(new char[] { ':', ' ' }, 2,
    StringSplitOptions.RemoveEmptyEntries)

Should work, but will break if you're trying to split a header name that contains a space.

yourString.Split(new string[] { ": " }, 2,
    StringSplitOptions.None);

Will do exactly what you describe, but actually requires the space to be present.

yourString.Split(new string[] { ": ", ":" }, 2,
    StringSplitOptions.None);

Makes the space optional, but you'd still have to TrimStart() in case of more than one space.

To keep the format somewhat flexible, and your code readable, I suggest using the first option:

string[] split = yourString.Split(new char[] { ':' }, 2);
// Optionally check split.Length here
split[1] = split[1].TrimStart();