split()用法

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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 char[] 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,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","4"}
3. public string[] Split(char[] separator,StringSplitOptions options)
程序代码
string[] split = words.Split(new Char[] { ',StringSplitOptions.RemoveEmptyEntries);//返回:{"1","4"} 不保留空元素
string[] split = words.Split(new Char[] { ',StringSplitOptions.None);//返回:{"1","4"} 保留空元素
4. public string[] Split(string[] separator,StringSplitOptions options)
程序代码
string[] split = words.Split(new string[] { ",","." },"4"} 不保留空元素
\u0002w1I+Ch%^\u0017}0string[] split = words.Split(new string[] { ","4"} 保留空元素
5. public string[] Split(char[] separator,2,4"} 不保留空元素 ITPUB个人空间1K;e\u0007f\u0008f }\u0011C n
string[] split = words.Split(new Char[] { ',6,"4"} 保留空元素
6. public string[] Split(string[] separator,4"} 不保留空元素
string[] split = words.Split(new string[] { ","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(',')

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