本帖最后由 刘赛 于 2013-4-26 16:32 编辑
C#的String.Split
方法String.Split 方法有6个重载函数：
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- 1) public string[] Split(params char[] separator)
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- 2) public string[] Split(char[] separator, int count)
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- 3) public string[] Split(char[] separator, StringSplitOptions options)
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- 4) public string[] Split(string[] separator, StringSplitOptions options)
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- 5) public string[] Split(char[] separator, int count, StringSplitOptions options)
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- 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";)：
1.
- public string[] Split(params char[] separator)
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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)
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- 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)
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- 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
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4.
- public string[] Split(string[] separator, StringSplitOptions options)
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- 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)
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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
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