C#的String.Split方法

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String.Split 方法有6个重载函数：ITPUB个人空间i3oMer'o[6}
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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)

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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";)：ITPUB个人空间x5eA7C/i n:X(fI W

6@1} {/c:cf!q01. public string[] Split(params char[] separator)ITPUB个人空间3` t+e]Z]Y#KO

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"}

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2. public string[] Split(char[] separator, int count)ITPUB个人空间%qQ+aPx z:g.u9C

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"}

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3. public string[] Split(char[] separator, StringSplitOptions options)ITPUB个人空间-u)G(w.g2n!Q,BLV_

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

XdZJkP/sRe04. public string[] Split(string[] separator, StringSplitOptions options)ITPUB个人空间_ ~6V?;f Ds`9c

程序代码

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

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

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6. public string[] Split(string[] separator, int count, StringSplitOptions options)ITPUB个人空间K9W:Sb l-t:ko

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