密码8到64位大小写字母+数字+字符 不能包含空格

#import "NSString+Extension.h"
#define NULLString(string) ((![string isKindOfClass:[NSString class]])||[string isEqualToString:@""] || (string == nil) || [string isEqualToString:@""] || [string isKindOfClass:[NSNull class]]||[[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length]==0)
@implementation NSString (Extension)
- (NSString *)validationPassword:(NSString *)password{

    // 判断密码不能包含空格 和要符合规则
    NSRange range = [password rangeOfString:@" "];
    NSString *validate = @"^(?=.*\\d)((?=.*[a-z])(?=.*[A-Z])(?=.*\\W).\\S{7,63})$";
    NSPredicate *numberPre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",validate];
    // 判断密码是否为空
    if (NULLString(password)) {
        return @"密码不能为空不符合规则";
    } else {
        if (range.location != NSNotFound) {
            return @"密码包含空格不符合规则";
        } else {
            if ([numberPre evaluateWithObject:password]) {
                return @"修改成功";
            } else {
                return @"密码不符合规则";
            }
        }
    }
    return nil;
}

@end