手机号的正则表达式(最新号段)

- (NSString *)valiMobile:(NSString *)mobile{
    if (mobile.length < 11)
    {
        return @"false";
    }else{
        /**
         * 移动号段正则表达式
         */
        NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(172)|(18[2-4,7-8]))\d{8}|(1705)\d{7}$";
        /**
         * 联通号段正则表达式
         */
        NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(175)|(18[5,6]))\d{8}|(1709)\d{7}$";
        /**
         * 电信号段正则表达式
         */
        NSString *CT_NUM = @"^((133)|(153)|(177)|(149)|(173)|(170)|(171)|(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) {
            if (isMatch1) {
                return @"true";
            }else if (isMatch2) {
                return @"true";
            }else {
                return @"true";
            }
        }else{
            return @"false";
        }
    }
    return nil;

}