如何在C＃字符串中拆分字符的最后一个实例？

I have a string that looks like this

我有一个看起来像这样的字符串

/root/test/test2/tesstset-werew-1

And I want to parse the word after the last /. So in this example, I want to grab the word tesstset-werew-1. What is the best way of doing this in C#? Should I split the string into an array or is there some built in function for this?

我想在最后一个/之后解析这个词。所以在这个例子中，我想抓住tesstset-werew-1这个词。在C＃中执行此操作的最佳方法是什么？我应该将字符串拆分成数组还是有一些内置函数？

5 个解决方案

#1

The Split() method

Split（）方法

string mystring = "/root/test/test2/tesstset-werew-1";

var mysplitstring = mystring.split("/");

string lastword = mysplitstring[mysplitstring.length - 1];

#2

If this is a path, which seems to be the case in your example you can use Path.GetFileName():

如果这是一个路径，在您的示例中似乎就是这种情况，您可以使用Path.GetFileName（）：

string fileName = Path.GetFileName("/root/test/test2/tesstset-werew-1");

#3

Splitting into an array is probably the easiest way to do it. The other would be regex

拆分成数组可能是最简单的方法。另一个是正则表达式

something like this would work:

这样的事情会起作用：

string[] segments = yourString.Split('/');
try
{
  lastSegment = segments[segments.length - 1];
}
catch (IndexOutOfRangeException)
{
    Console.WriteLine("Your original string does not have slashes");
}

You would want to put a check that segments[] has elements before the second statement.

您可能需要在第二个语句之前检查segments []是否包含元素。

#4

yourString.Substring(yourString.LastIndexOf('/') + 1);

#5

You can run the for loop in reverse order till the / sign.

您可以以相反的顺序运行for循环，直到/符号。

#1