iOS 判断汉字

秒速五厘米 2022-09-27 15:20 142阅读 0赞

if ([self deptNameInputShouldChinese]) {
        [DemonAlertHelper showToastWithMessage:@"只能是中文"];
        return;
    }
    调用这个方法就可
    #pragma mark--
    #pragma mark 输入中文
    - (BOOL) deptNameInputShouldChinese
    {
        NSString *regex = @"[\u4e00-\u9fa5]+";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
        if (![pred evaluateWithObject:inputTextField.text]) {
            return YES;
        }
        return NO;
    }
    
    
    判断全数字：
    
    - (BOOL) deptNumInputShouldNumber
    {
    NSString *regex =@"[0-9]*";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
        if (![pred evaluateWithObject:inputTextField.text]) {
            return YES;
        }
    return NO;
    }
    
    
    判断全字母：
    
    - (BOOL) deptPassInputShouldAlpha
    {
    NSString *regex =@"[a-zA-Z]*";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
        if (![pred evaluateWithObject:inputTextField.text]) {
            return YES;
        }
    return NO;
    }
    
    
    判断仅输入字母或数字：
    
    - (BOOL) deptIdInputShouldAlphaNum
    {
    NSString *regex =@"[a-zA-Z0-9]*";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
        if (![pred evaluateWithObject:inputTextField.text]) {
            return YES;
        }
    return NO;
    }

//判断是否含有除汉字，字母，数字之外的特殊字符
    - (BOOL)judgeTextView:(NSString *)text {
        NSString *regex = @"^[A-Za-z0-9\\u4e00-\u9fa5]+$";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
        return [pred evaluateWithObject:text];//return YES = 没有特殊字符
    }