IOS 去除空格

-(NSString )getSeparatedPhoneNumberWithString:(NSString )phoneString { NSCharacterSet *characterSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"];

NSString * string = phoneString;

//invertedSet方法是去反字符,把所有的除了characterSet里的字符都找出来(包含去空格功能)

NSCharacterSet *specCharacterSet = [characterSet invertedSet];

NSArray * strArr = [string componentsSeparatedByCharactersInSet:specCharacterSet];

return [strArr componentsJoinedByString:@""];
}