/// <summary> /// 解析IS NULL条件的抽象方法 /// </summary> /// <returns>返回解析后的条件字符串</returns> protected abstract string IsNullParse(IsNullCondition condition);
/// <summary> /// 解析IS NULL条件的抽象方法 /// </summary> /// <returns>返回解析后的条件字符串</returns> protected abstract string IsNullParse(IsNullCondition condition);