iphone開發用正則判斷郵箱、密碼是否正確

 

1、判斷使用者名稱，在2－16位

 

-(BOOL)CheckInput:(NSString *)_text

 

{

 

    NSString *Regex = @"^\\w{2,16}$";

 

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", Regex];

 

    return [emailTest evaluateWithObject:_text];

 

}

 

 

 

 

2、判斷手機號碼，1開頭的十一位元字

 

 

-(BOOL)CheckInput:(NSString *)_text

 

{

 

    NSString *Regex = @"1\\d{10}";

 

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", Regex];

 

    return [emailTest evaluateWithObject:_text];

 

}

 

 

 

3、判斷郵箱

 

 

 

 

-(BOOL)CheckInput:(NSString *)_text

 

{

 

    NSString *Regex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

 

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", Regex];

 

    return [emailTest evaluateWithObject:_text];

 

}

 

 

 

4、判斷密碼，6－16位

 

 

-(BOOL)CheckInput:(NSString *)_text

 

{

 

    NSString *Regex = @"\\w{6,16}";

 

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", Regex];

 

    return [emailTest evaluateWithObject:_text];

 

}