该程序运行后弹出一个窗口，当在这个窗口中单击鼠标的右键时，将弹出一个小菜单，有“打开”、“保存”、“复制”、“粘贴”‘选项。-After program run ,there can pomp a window. When you Click the right mouse button,there will pomp a short menu which has “open” 、”save”、”copy”、”psate”‘choice.