NSString *cleanString = [dirtyString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
还有就是去除多于的空格,如下:
NSString *theString = @
" Hello this is a long string! "; NSCharacterSet *whitespaces = [NSCharacterSet whitespaceCharacterSet]; NSPredicate *noEmptyStrings = [NSPredicate predicateWithFormat:@
"SELF != ''"]; NSArray *parts = [theString componentsSeparatedByCharactersInSet:whitespaces]; NSArray *filteredArray = [parts filteredArrayUsingPredicate:noEmptyStrings]; theString = [filteredArray componentsJoinedByString:@
" "];
转载于:https://www.cnblogs.com/zhkza99c/p/3794647.html
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