/// <summary>
 /// 往對象中添加查詢條件對象(SqlCondition)。
 /// </summary>
 /// <param name="cond">SqlCondition對象</param>
 public void Add(SqlCondition cond)
 {
     conditions.Add(cond);
 }
 /// <summary>
 /// 往對象中添加查詢條件對象(SqlCondition)。
 /// </summary>
 /// <param name="conds">SqlCondition對象數組</param>
 public void Add(SqlCondition[] conds)
 {
     foreach (SqlCondition cond in conds)
     {
         conditions.Add(cond);
     }
 }
 /// <summary>
 /// 往對象中添加查詢條件對象(SqlCondition)。
 /// </summary>
 /// <param name="Name">查詢條件字段</param>
 /// <param name="Express">查詢表達式</param>
 /// <param name="Value">查詢條件值</param>
 public void Add(string Name, string Express, object Value)
 {
     SqlCondition cond = new SqlCondition(Name, Express, Value);
     conditions.Add(cond);
 }