- (NSString *)stringByTrimmingCharactersInSet:(NSCharacterSet *)set
//Use whitespaceCharacterSet or whitespaceAndNewlineCharacterSet to remove whitespace around strings.
- (NSString *)stringByTrimmingCharactersInSet:(NSCharacterSet *)set
//Use whitespaceCharacterSet or whitespaceAndNewlineCharacterSet to remove whitespace around strings.
转载于:https://www.cnblogs.com/zander/archive/2013/02/25/2932321.html