使用C＃.NET进行字符串操作

Question

I need help with string manipulation in c#.

I have string with words and empty spaces between them(I have more than one empty spaces between words, empty spaces are dynamic). I need to replace empty spaces with dash "-"

I have something like this:

string stringForManipulation  = "word1    word2  word3"; 

I need to have this:

"word1-word2-word3"

Tnx

Answer 1

var result = Regex.Replace(stringForManipulation , @"\s+", "-");

s表示空格， +表示一个或多个出现。

Answer 2

You can use regular expressions:

string stringForManipulation = "word1    word2  word3";
string result = Regex.Replace(stringForManipulation, @"\s+", "-");

This will replace all occurences of one or more whitespace to "-".

Answer 3

对于不知道正则表达式的thoose，可以通过简单的拆分连接操作来实现：

string wordsWithDashes = stringForManipulation.Split(new []{' '}, StringSplitOptions.RemoveEmptyEntries).Join('-')

Answer 4

Simply use

string result=Regex.Replace(str , @"\s+", "-")

Will replace single or multiple spaces with single '-'

Answer 5

You can try the following

string stringForManipulation  = "word1    word2  word3"; 
string wordsWithDashes  = String.Join(" ", stringForManipulation.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries)).Replace(" ", "-");

Created a Fiddle