#pragma mark - 检测非法字符

//姓名只能由中文、字母或数字组成

- (BOOL)isValidateUser:(NSString *)text

{

    NSString * regex = @"^[a-zA-Z0-9_\u4e00-\u9fa5]+$";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];

    return [pred evaluateWithObject:text];

}

 //验证码，由0到9，6位数

- (BOOL)isValidateNumber:(NSString *)text

{

    NSString * regex = @"^[0-9]{6}";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];

    return [pred evaluateWithObject:text];

}

在UIAlert方法里

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

    XLOG(@"%d",buttonIndex);

    if (buttonIndex == 1)

    {

        //得到输入框

        UITextField *tf=[alertView textFieldAtIndex:0];

        if ([tf.text trimWhitespace].length <= 0)

        {

            [MTHint toast:@"不能为空" toView:self.view displaytime:2.0f];

            return;

        }

        if (![self isValidateUser:tf.text])

        {

            [MTHint toast:@"姓名只能由中文、字母或数字组成" toView:self.view displaytime:2.0f];

            return;

        }

        if (tf.text.length >= 10)

        {

            [MTHint toast:@"姓名需少于10个字符" toView:self.view displaytime:2];

            return;

        }

        [titleValues replaceObjectAtIndex:1 withObject:tf.text];

        nameValue = http://www.mamicode.com/tf.text;

        XLOG(@"%@",tf.text);

        [_tableView reloadData];

    }

}

textView判断格式，用户名，验证码