1调整拼多多工作台cookie时的cef user-agent，防止掉线

2优化商品删除逻辑，修复bug
3查找pdd版本长时间运行程序卡死原因并尝试修复
4pdd上货记住主要上货选项避免每次都重新选择

AllBase/BaseClass.cs

@@ -27,7 +27,7 @@ namespace AllBase
         /// <summary>
         /// 版本ID
         /// </summary>
-        public static int VersionCount = 616;
+        public static int VersionCount = 619;
         //public static int VersionCount = 613;
 
         /// <summary>
@@ -42,6 +42,7 @@ namespace AllBase
         public static Image LogoImage = null;
         public static Icon Ico = null;
         public static string MainPath = "kuajingda";
+        public static bool UsePddWorkbanch = true;
         public static bool NoRegedit = false;
         public static bool IsPinduoduo = false;
         public static bool UserApi = true;