help.cpp

书店管理程序

   //Help.cpp

  #    include   <conio.h>
  #    include   <stdlib.h>
  #    define     Key_ESC  1    //宏定义ESC键的扫描码

   void Help(void)
   {
	int key2;
	do{
	Init_Graph();   //图形屏幕初始化
	setbkcolor(LIGHTBLUE);
	if((fp=fopen("hzk16","rb"))==NULL)      //打开汉字库,字库可以在ucdos中找到
	{  printf("Can't open hzk16,Please add it");  //若找不到则退出系统
	getch(); closegraph(); exit(0);
	 }
		settextstyle(DEFAULT_FONT,HORIZ_DIR,2);
		HZ(250,38,30,2,YELLOW,"用户操作手则");
		HZ(80,100,15,1,YELLOW,"图书入库：用户输入图书名，编号，单价，购入数量。");
		HZ(155,120,15,1,YELLOW,"在输入图书名时只按回车键则停止输入。");
		HZ(80,185,15,1,YELLOW,"图书查询：用户输入图书名即可");
		HZ(80,270,15,1,YELLOW,"图书销售：用户输入图书名，售出数量。");
		HZ(80,355,15,1,YELLOW,"其他按特定快捷键做相关的动作。");
		rectangle(540,450,637,477);
		settextstyle(DEFAULT_FONT,HORIZ_DIR,1);
		outtextxy(550,460,"ESC");
		HZ(570,455,15,1,YELLOW,"『退出』");
		key2=Key();
	  }	while(key2!=Key_ESC);  //按ESC键退出
	  closegraph();
          fclose(fp); 
  }