The Stop menuchoice lets you stop the program. When you continue, you will pick up right where you left off. This is the same as hitting the ESC key.

• 停止计算菜单该菜单让你停止本程序的运行。当如继续计算的时间,将正确地在你停止的位置重新开始计算。按ESC键也可以达到同样的目的。