任何人都可以告诉我为什么我不能让这个菜单让我做出选择？它跳过让我选择正确的"错误选择".在此先感谢您的帮助,我一定会感谢您的亲自.
printf("Welcome to the Inventroy Control System");
printf("\nPlease make a selection");
printf("\n\n\ta) Display Inventory");
printf("\n\tb) Add New Items");
printf("\n\tg) Exit");
printf("\nSelect what you would like to do");
printf("\nOption Chosen: ");
fflush(stdin);
scanf("%c", &input);
input = toupper(input);
switch(input)
{
case 'A':
{
funa(j,a);
break;
}
case 'B':
{
j = funb(amount,a);
break;
}
case 'G':
{
fung();
break;
}
default:
{
printf("\nWrong Selection");
}
}