1
+ (BOOL)isPassword:(NSString*)password {
NSString* pattern = @"^(?=.{6,20}$).*$";
NSPredicate* predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern];
return [predicate evaluateWithObject:password];
}
,但它是""
返回肯定的。有小费吗?
我不能,它不是iOS 4兼容。 – lolol
这是iOS 4兼容,这里是正确的链接:http://developer.apple.com/library/ios/#documentation/Foundation/Reference/NSRegularExpression_Class/Reference/Reference.html – vikingosegundo
btw:你应该标记你问题与iOS如果要求iOS ... – vikingosegundo