backmanager.c

在LINUX下实现的一个超市的收银系统

	char ch;
	int i,j,temp;
	i=0;
	j=0;
	temp=0;

	WINDOW *append_mer_win = newwin(10,40,7,20);
	WINDOW *bar_code_win = subwin(append_mer_win,1,20,10,35);
	WINDOW *mer_amount_win = subwin(append_mer_win,1,20,13,35);
   	
	wbkgd(append_mer_win,COLOR_PAIR(9));
	wbkgd(bar_code_win,COLOR_PAIR(10));
	wbkgd(mer_amount_win,COLOR_PAIR(10));

    box(append_mer_win,0,0);
	mvwprintw(append_mer_win,0,16,"添加商品");
	mvwprintw(append_mer_win,3,6,"条形码:");
	mvwprintw(append_mer_win,6,8,"数量:");
	wrefresh(append_mer_win);

	keypad(bar_code_win,TRUE);
	echo();
	//首先输入条形码
	do
	{
		memset(append_bar_code,0,sizeof(append_bar_code));

		mvwgetnstr(bar_code_win,0,0,append_bar_code,20);
		
		if(append_bar_code[0]!= 'C')
		{
			ShowMessage("	    输入错误第一个必须为“C”");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(bar_code_win);
			continue;
		}
		if(append_bar_code[1] != 'N')
		{
			ShowMessage("       输入错误，第2个必须为“N”");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(bar_code_win);
			continue;
		}
		if(strlen(append_bar_code) > 8)
		{
			ShowMessage("     输入的字符太长了，必须为8位");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(bar_code_win);
			continue;
		}
		for(i=2;i<=7;i++)
		{
			if(isdigit(append_bar_code[i]))
			{
				continue;
			}
			temp=1;
			ShowMessage("      输入错误，后面6位必须为数字");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(bar_code_win);
			break;
		}
		if(1 == temp)
		{
			temp = 0;
			continue;
		}
		if(!SearchBarCode(append_bar_code,MER_NAME,MER_UNIT,MER_SPEC,&MER_PRICE,&MER_STOCK))
		{
			ShowMessage("    您输入的条形码不存在，请重新输入");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(bar_code_win);
			continue;
		}		
		break;
	}while (1);

	
	//要求输入添加商品数量
	do
	{
		memset(append_mer_amount,0,sizeof(append_mer_amount));	
		mvwgetnstr(mer_amount_win,0,0,append_mer_amount,20);

		for(i=0;i<strlen(append_mer_amount);i++)
		{
			if(append_mer_amount[i] == '.')
			{
				j++;
				continue;
			}
			if(!isdigit(append_mer_amount[i]))
			{
				temp = 1;
				break;
			}
		}
		if(1 == j)
		{		
			ShowMessage("        输入错误，必须输入整数");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(mer_amount_win);
			j = 0;
			continue;
		}
		if(j >= 2)
		{
			ShowMessage("        输入错误，你输入了多个小数点");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(mer_amount_win);
			j = 0;
			continue;
		}
		if(1 == temp)
		{			
			ShowMessage("        输入错误，输入的必须为数字");
			touchwin(append_mer_win);
			wrefresh(append_mer_win);
			wclrtoeol(mer_amount_win);
			temp =0;
			continue;
		}
		break;	
	}while (1);

	mer_amount = atoi(append_mer_amount);

	//把添加的商品数量保存到商品表里
	if(Append_Mer_Stock(append_bar_code,mer_amount))
	{
		ShowMessage("    添加增商品数量成功，按任意键返回");
		touchwin(append_mer_win);
		wrefresh(append_mer_win);
	}
	else
	{
		ShowMessage("    添加增商品数量失败，按任意键返回");
		touchwin(append_mer_win);
		wrefresh(append_mer_win);
	}
	
	noecho();
	ch = mvwgetch(append_mer_win,9,20);
	echo();

	delwin(append_mer_win);
	clear();
	refresh();
	Manager_Mer();
}

/*==========删除商品==============*/
void Del_Mer()
{
	char del_bar_code[20],ch;
	int i,temp;
	i=0;
	temp=0;

	WINDOW *del_mer_win = newwin(8,40,8,20);
	WINDOW *del_bar_code_win = subwin(del_mer_win,1,20,12,36);
   	
	wbkgd(del_mer_win,COLOR_PAIR(9));
	wbkgd(del_bar_code_win,COLOR_PAIR(10));
	  
	box(del_mer_win,0,0);
	mvwprintw(del_mer_win,1,15,"删除商品");
	mvwprintw(del_mer_win,4,3,"商品条形码:");
	wrefresh(del_mer_win);
	echo();
	//判断输入的条形码是否正确
	do
	{
		memset(del_bar_code,0,sizeof(del_bar_code));

		mvwgetnstr(del_bar_code_win,0,0,del_bar_code,20);
		
		if(del_bar_code[0]!= 'C')
		{
			ShowMessage("	输入错误第一个必须为“C”");
			touchwin(del_mer_win);
			wrefresh(del_mer_win);
			wclrtoeol(del_bar_code_win);
			continue;
		}
		if(del_bar_code[1] != 'N')
		{
			ShowMessage("    输入错误，第2个必须为“N”");
			touchwin(del_mer_win);
			wrefresh(del_mer_win);
			wclrtoeol(del_bar_code_win);
			continue;
		}
		if(strlen(del_bar_code) > 8)
		{
			ShowMessage("    输入的字符太长了，必须为8位");
			touchwin(del_mer_win);
			wrefresh(del_mer_win);
			wclrtoeol(del_bar_code_win);;
			continue;
		}
		for(i=2;i<=7;i++)
		{
			if(isdigit(del_bar_code[i]))
			{
				continue;
			}
			temp=1;
			ShowMessage("     输入错误，后面6位必须为数字");
			touchwin(del_mer_win);
			wrefresh(del_mer_win);
			wclrtoeol(del_bar_code_win);
			break;
		}
		if(1 == temp)
		{
			temp = 0;
			continue;
		}
		if(!SearchBarCode(del_bar_code,MER_NAME,MER_UNIT,MER_SPEC,&MER_PRICE,&MER_STOCK))
		{
			ShowMessage("  你输入的条形码不存在，请重新输入");
			touchwin(del_mer_win);
			wrefresh(del_mer_win);
			wclrtoeol(del_bar_code_win);
			continue;
		}		
		break;
	}while (1);	
	//条形码输入正确后,进行删除商品操作
	//Delete_Mer_From_Db(char *bar_code);
	if( Delete_Mer_From_Db(del_bar_code))
	{
		ShowMessage("     商品删除成功,按任意键返回");
		touchwin(del_mer_win);
		wrefresh(del_mer_win);
	}
	else
	{
		ShowMessage("     商品删除失败,按任意键返回");
		touchwin(del_mer_win);
		wrefresh(del_mer_win);
	}

	noecho();
	ch = mvwgetch(del_mer_win,7,20);
	echo();
	
	delwin(del_mer_win);
	clear();
	refresh();
	Manager_Mer();
}

/*====================账户管理=================*/
void AccountManager()
{
	char str[20];

	WINDOW *acc_man_win  = newwin(13,40,6,20);
	WINDOW *choice_win = subwin(acc_man_win,1,10,16,40);

	wbkgd(acc_man_win,COLOR_PAIR(9));
	wbkgd(choice_win,COLOR_PAIR(10));

	do
	{
		box(acc_man_win,0,0);	
		mvwprintw(acc_man_win,0,16,"帐号管理");
		mvwprintw(acc_man_win,2,12,"1.添加帐号");
		mvwprintw(acc_man_win,4,12,"2.删除帐号");
		mvwprintw(acc_man_win,6,12,"3.修改密码");
		mvwprintw(acc_man_win,8,12,"0.返回上一级菜单");
		mvwprintw(acc_man_win,10,12,"请选择:");
		wrefresh(acc_man_win);
		
		echo();
		mvwgetnstr(choice_win,0,0,str,10);
		noecho();
		if(strlen(str)>1)
		{
			ShowMessage("          输入错误,请重新输入");
			memset(str,0,sizeof(str));
			wclrtoeol(choice_win);
			refresh();
			continue;
		}
		if(!strncmp("1",str,1))
		{
			delwin(acc_man_win);
			clear();
			refresh();
			Add_Account();
		}

		else if(!strncmp("2",str,1))
		{
			delwin(acc_man_win);
			clear();
			refresh();
			Del_Account();
		}
		else if(!strncmp("3",str,1))
		{
			delwin(acc_man_win);
			clear();
			refresh();
			Mod_Password();
		}
		else if(!strncmp("0",str,1))
		{
			ShowMessage("       正在返回后台管理菜单......");
			delwin(acc_man_win);
			clear();
			refresh();			
			BackManager();
		}
		else 
		{
			ShowMessage("          输入错误,请重新输入");
			memset(str,0,sizeof(str));
			wclrtoeol(choice_win);
			refresh();
			continue;	
		}
	}while (1);
}

/*==============添加帐户===============*/
void Add_Account()
{
	char add_acc_id[20];
	char add_acc_name[20];
	char add_acc_pwd[20];
	char add_grade[20];
		
	int grade;

	int ch;
	int i,j,temp;
	i=0;
	j=0;
	temp=0;

	WINDOW *add_acc_win = newwin(10,40,7,20);
	WINDOW *acc_id_win = subwin(add_acc_win,1,20,9,33);
	WINDOW *acc_name_win = subwin(add_acc_win,1,20,11,33);
	WINDOW *acc_pwd_win = subwin(add_acc_win,1,20,13,33);
	WINDOW *grade_win = subwin(add_acc_win,1,20,15,33);

	wbkgd(add_acc_win,COLOR_PAIR(9));
	wbkgd(acc_id_win,COLOR_PAIR(10));
	wbkgd(acc_name_win,COLOR_PAIR(10));
	wbkgd(acc_pwd_win,COLOR_PAIR(10));
	wbkgd(grade_win,COLOR_PAIR(10));

	box(add_acc_win,0,0);	
	mvwprintw(add_acc_win,0,16,"添加帐户");
	mvwprintw(add_acc_win,2,4,"帐号ID:");
	mvwprintw(add_acc_win,4,2,"帐号名称:");
	mvwprintw(add_acc_win,6,6,"密码:");
	mvwprintw(add_acc_win,8,6,"等级:");

	wrefresh(add_acc_win);

	echo();
	//输入帐号ID
	do
	{
		memset(add_acc_id,0,sizeof(add_acc_id));
		mvwgetnstr(acc_id_win,0,0,add_acc_id,20);

		for(i=0;i < strlen(add_acc_id);i++)
		{
			if(isdigit(add_acc_id[i]))
			{
				continue;
			}
			temp=1;
			ShowMessage("     输入错误，帐户只允许输入数字");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(acc_id_win);
			break;
		}
		if(1 == temp)
		{
			temp=0;
			continue;
		}
		if(strlen(add_acc_id) != 6)
		{
			ShowMessage("          帐户只允许6位数字");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(acc_id_win);
			continue;
		}
		if(strlen(add_acc_id) == 0)
		{
			ShowMessage("          输入的帐号不允许为空");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(acc_id_win);
			continue;
		}
		if(Search_Account_Id(add_acc_id))//查询帐号是否已经存在了
		{
			ShowMessage("        你输入的帐号已经存在");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(acc_id_win);
			continue;
		}
		break;
	}while (1);

	//输入帐号名称
	mvwgetnstr(acc_name_win,0,0,add_acc_name,20);

	//输入帐号密码
	keypad(acc_pwd_win,TRUE);
	temp=0;
	do
	{	
		//输入密码
		ch = mvwgetch(acc_pwd_win,0,0+temp);
	
		if((isprint(ch)) && (!isspace(ch)))
		{
			mvwaddch(acc_pwd_win,0,0+temp,'*');
			wrefresh(acc_pwd_win);
			add_acc_pwd[temp] = ch;
			temp++;
			if(temp >=12)
			{
				break;
			}
		}
		if(temp >=6 && ch == '\n')
		{
			break;
		}

		else if(ch == KEY_BACKSPACE)
		{
			if(temp > 0)
			{
				--temp;
				wmove(acc_pwd_win,0,0+temp);
				wclrtoeol(acc_pwd_win);
			}
			else
			{
				wmove(acc_pwd_win,0,0);
				wclrtoeol(acc_pwd_win);
			}
		}
	}while(1);
	
	//输入等级
	do
	{
		memset(add_grade,0,sizeof(add_grade));
		mvwgetnstr(grade_win,0,0,add_grade,20);

		for(i=0;i < strlen(add_grade);i++)
		{
			if(isdigit(add_grade[i]))
			{
				continue;
			}
			temp=1;
			ShowMessage("      帐户等级只允许输入1,2,3,4");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(grade_win);
			break;
		}
		if(1 == temp)
		{
			temp=0;
			continue;
		}
		if( atoi(add_grade) !=1 && atoi(add_grade) !=2 && atoi(add_grade) !=  3&&  atoi(add_grade)!=4 )
		{
			ShowMessage("      帐户等级只允许输入1,2,3,4");
			touchwin(add_acc_win);
			wrefresh(add_acc_win);
			wclrtoeol(grade_win);
			continue;
		}
		break;
	}while(1);
	
	grade = atoi(add_grade);

	//保存到帐户表
	if(Save_Account_To_Db(add_acc_id,add_acc_name,add_acc_pwd,grade,NULL))
	{
		ShowMessage("      添加帐号成功,按任意键返回");
		touchwin(add_acc_win);
		wrefresh(add_acc_win);
	}
	else
	{
		ShowMessage("       添加帐号失败,按任意键返回");
		touchwin(add_acc_win);
		wrefresh(add_acc_win);
	}
	noecho();
	ch = mvwgetch(add_acc_win,9,20);
	echo();
	delwin(add_acc_win);

}

/*=================删除帐户==================*/
void Del_Account()
{
	char del_acc_id[20];

	char ch;

	WINDOW *del_acc_win = newwin(7,40,9,20);
	WINDOW *acc_id_win = subwin(del_acc_win,1,20,12,33);

	wbkgd(del_acc_win,COLOR_PAIR(9));
	wbkgd(acc_id_win,COLOR_PAIR(10));
	box(del_acc_win,0,0);	
	mvwprintw(del_acc_win,0,16,"删除帐户");
	mvwprintw(del_acc_win,3,4,"帐号ID:");
	
	wrefresh(del_acc_win);

	echo();

	do
	{
		memset(del_acc_id,0,sizeof(del_acc_id));
		mvwgetnstr(acc_id_win,0,0,del_acc_id,20);