Here is the modified code:
# Contains? & ltstdio.h & gt
# Contains? & ltstdlib.h & gt
# Contains? & lttime.h & gt
# Contains? & ltconio.h & gt
Invalid? Menu ()
{
printf("*******？ Menu? Title? * * * * * * * * * * * \ n ")；
printf("？ [ 1]? Stage? 1 \ n ")；
printf("？ [2]? Stage? 2 \ n ")；
printf("？ [3]? Stage? 3 \ n”)；
printf("？ [4]? Stage? 4 \ n ")；
printf("？ [5]? Stage? 5 \ n ")；
printf("？ [6]? Stage? 6 \ n ")；
printf("？ [7]? Stage? 7 \ n ")；
printf("？ [8]? Stage? 8 \ n”)；
printf("？ [9]? Exit \ n \ n ");
printf("？ & gt>);
}
Invalid? dosomething(void)
{
}
Invalid? Press the key ()
{
int？ Choose;
Scanf("%d ",& select);
Switch? (select)
{
Case? 1:do something()； Break;
Case? 2:do something()； Break;
Case? 3:do something()； Break;
Case? 4:do something()； Break;
Case? 5:do something()； Break;
Case? 6:do something()； Break;
Case? 7:do something()； Break;
Case? 8:do something()； Break;
Case? 9:
Printf ("Quit the program \ n");
Exit (0);
Default value: printf ("input error \ n");
}
//? This sentence is for debugging.
Printf ("The option you entered is:% d \ Press any key to refresh",? Select);
}
int？ Master ()
{
What time? ( 1)
{
menu()；
keyDown()；
getch()；
System ("CLS");
}
Return? 0;
}