1

、用字符串分隔： 

using

 System.Text.RegularExpressions;

string

 str

=

"

aaajsbbbjsccc

"

;

string

[] sArray

=

Regex.Split(str,

"

js

"

,RegexOptions.IgnoreCase);

foreach

 (

string

 i 

in

 sArray) Response.Write(i.ToString() 

+

 

"

<br>

"

);

输出结果：

aaa

bbb

ccc

2

、用多个字符来分隔：

string

 str

=

"

aaajbbbscccjdddseee

"

;

 

string

[] sArray

=

str.Split(

new

 

char

[

2

]  

{

'

j

'

,

'

s

'

}

); 

foreach

(

string

 i 

in

 sArray) Response.Write(i.ToString() 

+

 

"

<br>

"

); 

输出结果：

aaa

bbb

ccc

ddd

eee

3

、用单个字符来分隔：

string

 str

=

"

aaajbbbjccc

"

;

string

[] sArray

=

str.Split(

'

j

'

);

foreach

(

string

 i 

in

 sArray) Response.Write(i.ToString() 

+

 

"

<br>

"

);

输出结果：

aaa

bbb

ccc

 

string[] arr = str.Split("o");

这是一个具有语法错误的语句，Split 的 separator 参数应该是 [] 或 string[]，不应是字符串。正确的示例：

string str = "technology";

char[] separator = { 'o' };

string[] arr = str.Split(separator);

String.Split 方法有6个重载函数：

程序代码

1) public string[] Split(params char[] separator)

2) public string[] Split(char[] separator, int count)

3) public string[] Split(char[] separator, StringSplitOptions options)

4) public string[] Split(string[] separator, StringSplitOptions options)

5) public string[] Split(char[] separator, int count, StringSplitOptions options)

6) public string[] Split(string[] separator, int count, StringSplitOptions options)

下边我们通过一些实例来说明下怎么使用(以下string words = "1,2.3,,4";)：

1. public string[] Split(params char[] separator)

程序代码

string[] split = words.Split(new Char[] { ',' });//返回:{"1","2.3","","4"}

string[] split = words.Split(new Char[] { ',', '.' });//返回:{"1","2","3","","4"}

2. public string[] Split(char[] separator, int count) ITPUB个人空间,n:H!C0M/S3U\u0002P

程序代码

string[] split = words.Split(new Char[] { ',', '.' }, 2);//返回:{"1","2.3,,4"}

string[] split = words.Split(new Char[] { ',', '.' }, 6);//返回:{"1","2","3","","4"}

3. public string[] Split(char[] separator, StringSplitOptions options)

程序代码

string[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素

string[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素

4. public string[] Split(string[] separator, StringSplitOptions options)

程序代码

string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素

\u0002w1I+Ch%^\u0017}0string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素

5. public string[] Split(char[] separator, int count, StringSplitOptions options)

程序代码

string[] split = words.Split(new Char[] { ',', '.' }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素 ITPUB个人空间1K;e\u0007f\u0008f }\u0011C n

string[] split = words.Split(new Char[] { ',', '.' }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素

6. public string[] Split(string[] separator, int count, StringSplitOptions options)

程序代码

string[] split = words.Split(new string[] { ",", "." }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素

string[] split = words.Split(new string[] { ",", "." }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素

需要注意的是没有重载函数public string[] Split(string[] separator)，所以我们不能像VB.NET那样使用words.Split(",")，而只能使用words.Split(','）