摘要： 1.在项目中添加基于Base Command等的类，可改变命名空间名称。2.引用:命名空间.类名称；实例：using System;using System.Collections.Generic;using System.Text;using System.Runtime.InteropServices;using System.Resources;using System.Reflection;using System.Drawing;using ESRI.ArcGIS.ADF.BaseClasses;using ESRI.ArcGIS.ADF.CATIDs;using ESRI.ArcG 阅读全文