本程序实现了：

（1）单独运行以上各功能,即在进入主菜单以后，点一功能键后关闭，再进入主菜单

点别的功能键。如运行"cjgl"文件后,在出现的主界面中点“I”，可插入数据，插入完

以后，关闭；在出现的主界面中点“M”，可修改数据，修改完以后关闭，用同样的方法

可运行其它的功能。

（2）连续运行部分的功能。-This program implements: (1) single run of the above functions, which enter the main menu after the point of a function key off, then something else into the main menu function keys. Such as running " cjgl"　file, the midpoint of the main interface in the event of " I" , to insert the data into complete, close　the midpoint of the main interface appears, " M" , can modify the data, modifying later closed, with The same method can be run other functions. (2) continuous operation of some functions.