regular expression of checkPhone

Posted on | In | Visitors

正则表达式是个神奇的东西，这种东东就该备着以防不时之需，哈哈。

判断手机号的正则表达式

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-(NSString *)checkPhoneNum:(NSString *)mobile{
    if (mobile.length < 11) {
        return @"手机号长度只能是11位";
    } else {
         //移动号段正则表达式              
        NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))//d{8}|(1705)//d{7}$";
        // 联通号段正则表达式          
        NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))//d{8}|(1709)//d{7}$";  
         //电信号段正则表达式             
        NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))//d{8}$";
        NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM_NUM];
        BOOL isMatch1 = [pred1 evaluateWithObject:mobile];
        NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU_NUM];
        BOOL isMatch2 = [pred2 evaluateWithObject:mobile];
        NSPredicate *pred3 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT_NUM];
        BOOL isMatch3 = [pred3 evaluateWithObject:mobile];
        if (isMatch1 || isMatch2 || isMatch3) {
            return nil;
        } else {
            return @"请输入正确的电话号码";
        }    
    }
    return nil;
}

使用

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NSString *phoneErr = [self checkPhoneNum:strPhone];
if(strPhone) {
    [self showAlertInfo:phoneErr];
    return;
}