这是一个显示菜单及功能调用几个用汇编语言编写的具有DOS命令功能的文件的程序。程序的主要功能是，要进入菜单，必需先要输入密码，密码正确则显示菜单，密码错误则显示错误信息，并要求重新输入，若输入的密码三次是错误的话则回到DOS系统。若能正确地进入菜单，用户则可以随意调用菜单里相应的功能-This is a show that the menu and function calls several assembler language with the DOS command functions of the procedures. The principal function is to enter the menu, must first enter the password, the password is correct display menu, password error error message and asked to re-enter, if the password wrong three times on his return to the DOS system. If the right to enter the menu, users can call arbitrary menu corresponding function