/// <summary>
        /// 判断条件是否一样
        /// </summary>
        /// <param name="leftWhere"></param>
        /// <param name="rightWhere"></param>
        /// <returns></returns>
        public static bool Equals(WhereClip leftWhere, WhereClip rightWhere)
        {
            string leftWhereString  = leftWhere.ToString();
            string rightWhereString = rightWhere.ToString();

            foreach (Parameter p in leftWhere.parameters)
            {
                leftWhereString.Replace(p.ParameterName, (p.ParameterValue == null) ? string.Empty : p.ParameterValue.ToString());
            }

            foreach (Parameter p in rightWhere.parameters)
            {
                rightWhereString.Replace(p.ParameterName, (p.ParameterValue == null) ? string.Empty : p.ParameterValue.ToString());
            }

            return(string.Compare(leftWhereString, rightWhereString, true) == 0);
        }