diff --git a/examples/gui/demo_simple_workbench.c b/examples/gui/demo_simple_workbench.c
new file mode 100644
index 0000000000000000000000000000000000000000..d0432428c7c78251e874c272b1c7434692470aaf
--- /dev/null
+++ b/examples/gui/demo_simple_workbench.c
@@ -0,0 +1,60 @@
+/*
+ * A simple workbench
+ */
+#include <rtthread.h>
+#include <rtgui/rtgui_server.h>
+#include <rtgui/rtgui_system.h>
+#include <rtgui/widgets/label.h>
+#include <rtgui/widgets/workbench.h>
+
+static void workbench_entry(void* parameter)
+{
+	rt_mq_t mq;
+	rtgui_view_t* view;
+	rtgui_label_t* label;
+	struct rtgui_workbench* workbench;
+	rtgui_rect_t rect;
+
+	mq = rt_mq_create("wmq", 256, 8, RT_IPC_FLAG_FIFO);
+	/* ×¢²áµ±Ç°Ïß³ÌΪGUIÏß³Ì */
+	rtgui_thread_register(rt_thread_self(), mq);
+	/* ´´½¨Ò»¸ö¹¤×÷̨ */
+	workbench = rtgui_workbench_create("main", "workbench #1");
+	if (workbench == RT_NULL) return;
+
+	view = rtgui_view_create("view");
+	if (view == RT_NULL) return;
+	/* Ö¸¶¨ÊÓͼµÄ±³¾°É« */
+	RTGUI_WIDGET_BACKGROUND(RTGUI_WIDGET(view)) = white;
+
+	/* Ìí¼ÓÒ»¸ölabel */
+	label = rtgui_label_create("ÄãºÃ£¡RT-Thread£¡");
+	rect.x1 = 10; rect.y1 = 10;
+	rect.x2 = 210; rect.y2 = 30;
+	/* ÉèÖÃlabelµÄλÖà */
+	rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
+	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(label));
+
+	/* Ìí¼Óµ½¸¸workbenchÖÐ */
+	rtgui_workbench_add_view(workbench, view);
+	/* ·Çģʽ·½Ê½ÏÔʾÊÓͼ */
+	rtgui_view_show(view, RT_FALSE);
+
+	/* Ö´Ðй¤×÷̨ʼþÑ­»· */
+	rtgui_workbench_event_loop(workbench);
+
+	/* È¥×¢²áGUIÏß³Ì */
+	rtgui_thread_deregister(rt_thread_self());
+
+	/* delete message queue */
+	rt_mq_delete(mq);
+}
+
+/* ³õʼ»¯workbench */
+void wb_init()
+{
+	rt_thread_t tid;
+
+	tid = rt_thread_create("wb1", workbench_entry, RT_NULL, 2048, 20, 5);
+	if (tid != RT_NULL) rt_thread_startup(tid);
+}
diff --git a/examples/gui/demo_view_menu.c b/examples/gui/demo_view_menu.c
index f3b421a36cf5319a3dcbfddc32d3b82aad38a341..c0dabbb8df21ce24bf731f9c164883f4d088648c 100644
--- a/examples/gui/demo_view_menu.c
+++ b/examples/gui/demo_view_menu.c
@@ -7,21 +7,25 @@
 #include <rtgui/widgets/menu.h>
 #include <rtgui/widgets/button.h>
 
+static rt_bool_t _onmenuitem(struct rtgui_widget *widget, struct rtgui_event* event)
+{
+	rt_kprintf("menu action!!\n");
+	return RT_TRUE;
+}
 
-static rtgui_menu_item_t sub_items[] = 
+static const rtgui_menu_item_t sub_items[] = 
 {
-	{RTGUI_ITEM_NORMAL, "item #1", RT_NULL, RT_NULL, 0, RT_NULL},
+	{RTGUI_ITEM_NORMAL, "item #1", RT_NULL, RT_NULL, 0, _onmenuitem},
 	{RTGUI_ITEM_NORMAL, "item #2", RT_NULL, RT_NULL, 0, RT_NULL},
 	{RTGUI_ITEM_SEPARATOR, RT_NULL, RT_NULL, RT_NULL, 0, RT_NULL},
 	{RTGUI_ITEM_NORMAL, "item #3", RT_NULL, RT_NULL, 0, RT_NULL},
 };
-static rtgui_menu_item_t items[] = 
+static const rtgui_menu_item_t items[] = 
 {
 	{RTGUI_ITEM_NORMAL, "item #1", RT_NULL, RT_NULL, 0, RT_NULL},
 	{RTGUI_ITEM_NORMAL, "item #2", RT_NULL, RT_NULL, 0, RT_NULL},
 	{RTGUI_ITEM_SEPARATOR, RT_NULL, RT_NULL, RT_NULL, 0, RT_NULL},
-	{RTGUI_ITEM_NORMAL, "item #3", RT_NULL, RT_NULL, 0, RT_NULL},
-	// {RTGUI_ITEM_SUBMENU, "item #3", RT_NULL, sub_items, sizeof(sub_items)/sizeof(sub_items[0]), RT_NULL},
+	{RTGUI_ITEM_SUBMENU, "item #3", RT_NULL, sub_items, sizeof(sub_items)/sizeof(sub_items[0]), RT_NULL},
 };
 static rtgui_menu_t* menu;
 
@@ -33,7 +37,7 @@ static _onmenu(struct rtgui_widget* widget, struct rtgui_event* event)
 	rtgui_widget_rect_to_device(widget, &rect);
 
 	if (menu != RT_NULL)
-		rtgui_menu_pop(menu, rect.x1, rect.y2);
+		rtgui_menu_pop(menu, rect.x1, rect.y2 + 5);
 }
 
 /* 创建用于演示menu控件的视图 */