自动创建动态弹出式菜单的代码演示。 包含弹出前菜单有效性控制和菜单项命令响应演示。-Automatically create a dynamic pop-up menu code demo. Popup menu contains before effective control and menu item command response demo.

弹出式菜单实现。点击鼠标右键弹出菜单，单击菜单运行相应的响应函数。-Pop-up menu implementation. Right-click pop-up menu, click the menu runs the appropriate response function.