IOS简单的字串替换方法stringByTrimmingCharactersInSet

来源：互联网发布：db2 v9.7 linux下载编辑：程序博客网时间：2024/05/19 16:35

今天听人介绍了一个比较简单的过滤方法...不多说了,直接上代码

 1 NSString *str = @"一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入"; 2     NSMutableCharacterSet *set = [[NSMutableCharacterSet alloc] init]; 3     [set formUnionWithCharacterSet:[NSCharacterSet lowercaseLetterCharacterSet]];//小写字母 4     NSLog(@"1 %@",[str stringByTrimmingCharactersInSet:set]); 5     [set formUnionWithCharacterSet:[NSCharacterSet uppercaseLetterCharacterSet]];//大写字母 6     NSLog(@"2 %@",[str stringByTrimmingCharactersInSet:set]); 7     [set formUnionWithCharacterSet:[NSCharacterSet symbolCharacterSet]];//符号 8     NSLog(@"3 %@",[str stringByTrimmingCharactersInSet:set]); 9     [set formUnionWithCharacterSet:[NSCharacterSet punctuationCharacterSet]];//标点10     NSLog(@"4 %@",[str stringByTrimmingCharactersInSet:set]);11     [set formUnionWithCharacterSet:[NSCharacterSet controlCharacterSet]];//控制符12     NSLog(@"5 %@",[str stringByTrimmingCharactersInSet:set]);13     [set formUnionWithCharacterSet:[NSCharacterSet decimalDigitCharacterSet]];//小数14     NSLog(@"6 %@",[str stringByTrimmingCharactersInSet:set]);15     [set formUnionWithCharacterSet:[NSCharacterSet letterCharacterSet]];//文字16     NSLog(@"7 %@",[str stringByTrimmingCharactersInSet:set]);17     [set formUnionWithCharacterSet:[NSCharacterSet nonBaseCharacterSet]];//非基础18     NSLog(@"8 %@",[str stringByTrimmingCharactersInSet:set]);19     [set formUnionWithCharacterSet:[NSCharacterSet alphanumericCharacterSet]];//字母数字20     NSLog(@"9 %@",[str stringByTrimmingCharactersInSet:set]);21     [set formUnionWithCharacterSet:[NSCharacterSet decomposableCharacterSet]];//可分解22     NSLog(@"10 %@",[str stringByTrimmingCharactersInSet:set]);23     [set formUnionWithCharacterSet:[NSCharacterSet illegalCharacterSet]];//非法24     NSLog(@"11 %@",[str stringByTrimmingCharactersInSet:set]);25     [set formUnionWithCharacterSet:[NSCharacterSet capitalizedLetterCharacterSet]];//大写26     NSLog(@"12 %@",[str stringByTrimmingCharactersInSet:set]);27     [set formUnionWithCharacterSet:[NSCharacterSet newlineCharacterSet]];//换行符28     NSLog(@"13 %@",[str stringByTrimmingCharactersInSet:set]);29     [set formUnionWithCharacterSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];//空格换行30     NSLog(@"14 %@",[str stringByTrimmingCharactersInSet:set]);

1 2012-07-26 19:11:01.863 yingkong1987[12876:fb03] 1 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 2 2012-07-26 19:11:01.864 yingkong1987[12876:fb03] 2 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 3 2012-07-26 19:11:01.864 yingkong1987[12876:fb03] 3 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 4 2012-07-26 19:11:01.864 yingkong1987[12876:fb03] 4 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 5 2012-07-26 19:11:01.865 yingkong1987[12876:fb03] 5 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 6 2012-07-26 19:11:01.865 yingkong1987[12876:fb03] 6 一个 (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 汉0932字#@!中..文//>?输~~~@#$#@%#^#^%&^*&(*)入 7 2012-07-26 19:11:01.865 yingkong1987[12876:fb03] 7  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn  8 2012-07-26 19:11:01.865 yingkong1987[12876:fb03] 8  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn  9 2012-07-26 19:11:01.865 yingkong1987[12876:fb03] 9  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 10 2012-07-26 19:11:01.866 yingkong1987[12876:fb03] 10  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 11 2012-07-26 19:11:02.170 yingkong1987[12876:fb03] 11  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 12 2012-07-26 19:11:02.170 yingkong1987[12876:fb03] 12  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 13 2012-07-26 19:11:02.170 yingkong1987[12876:fb03] 13  (ABC) #@!#^#G@#Dd21e12d!E@!212s012yhsn 14 2012-07-26 19:11:02.170 yingkong1987[12876:fb03] 14

发现这个方法有一个很大的缺点..比如要去掉(ABC)的英文部分..必须要先去掉外面的括号....不然无法过滤...

空格亦是如此

如果有更好的过滤方法,欢迎留言讨论