libsys.cpp

图书管理系统,DOS界面,输入书籍保存信息

// LibSys.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "Data_Operate.h"
#include "Display.h"
#include "DataDefine.h"
#include "OtherFunc.h"
#include <string.h>
#include <ctype.h>
#include <conio.h>
#include <stdlib.h>

int main(int argc, char* argv[])
{
	char Key_Value=0; //for store the key value
	int ch=0;         

	BookData data[MAXSIZE];  //bookdata struct 
	FreeData(data);		//free the struct for the safe
	
	GetDataPoint(data);     

	ShowData(data);
	ShowMenu();

	while(Key_Value=GetKey())  
	{	
		switch(Key_Value)
		{
			case INSERT_KEY:
				do
				{
					if(ch=='Y') //if yes?表示ch有意义,说明已经是第二次输入,需要刷新显示一下数据
					{
						system("cls"); //clean the screen
						GetDataPoint(data);
						ShowData(data);
						ShowMenu();
					}
					if(!InsertData())//return false?
						break;
					gotoxy(0,24);   //set the point
					printf("继续?(Y/N)");
					ch=getche();//get key
					ch = toupper(ch);//转为大写易判断,如果用户输入了小写y/n
					if(ch=='N')//n就出去
					{
						break;		
					}
				}while(ch=='Y');
				break;
			case DELETE_KEY:
				DeleteData(data);
				break;
			case EDIT_KEY:
				EditData(data);
				break;
			case ORDER_KEY:
				OrderData(data);
				break;
			case ABOUT_KEY:
				ShowAbout();
				break;
			case EXIT_KEY:
				printf("\n欢迎再次使用,再见!");
				getche();//待确认
				return 0;
			default:
				printf("\n无效菜单编号,请重新输入!\nPress any key to continue!");
				getche();
				break;

		}
		system("cls");
		GetDataPoint(data);
		ShowData(data);
		ShowMenu();
	}
	return 0;
}