Split 方法
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String.Split 方法有6个重载函数:
程序代码
1) publicstring[] Split(params char[] separator)
2) publicstring[] Split(char[] separator, int count)
3) public string[] Split(char[] separator, StringSplitOptionsoptions)
4) public string[] Split(string[] separator, StringSplitOptionsoptions)
5) public string[] Split(char[] separator, int count,StringSplitOptions options)
6) public string[] Split(string[] separator, int count,StringSplitOptions options)
3) public string[] Split(char[] separator, StringSplitOptionsoptions)
4) public string[] Split(string[] separator, StringSplitOptionsoptions)
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, intcount)
string[] split = words.Split(new Char[] { ',', '.'});//返回:{"1","2","3","","4"}
2. public string[] Split(char[] separator, intcount)
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)
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)
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
string[] 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)
string[] 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
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)
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
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(',')
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