backmanager.c

在LINUX下实现的一个超市的收银系统

#include "extern.h"

/*=========后台管理==========*/
void BackManager()
{
	char str[10];
	
    WINDOW *backman_win = newwin(14,40,4,20);
	WINDOW *choice_win = subwin(backman_win,1,10,15,40);
   	
	wbkgd(backman_win,COLOR_PAIR(9));
	wbkgd(choice_win,COLOR_PAIR(10));

	keypad(choice_win,TRUE);
    do
    {		
		box(backman_win,0,0);
		mvwprintw(backman_win,1,15,"后台管理");
		mvwprintw(backman_win,3,12,"1: 商品管理");
		mvwprintw(backman_win,5,12,"2: 帐户管理");
		mvwprintw(backman_win,7,12,"3: 销售记录查询");
		mvwprintw(backman_win,9,12,"0: 返回登陆界面");
		mvwprintw(backman_win,11,12,"请选择:");
		wrefresh(backman_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(backman_win);
			clear();
			refresh();
			Manager_Mer();
		}

		else if(!strncmp("2",str,1))
		{
			delwin(backman_win);
			clear();
			refresh();
			AccountManager();
		}

		else if(!strncmp("3",str,1))
		{
			delwin(backman_win);
			clear();
			refresh();
			SellRecordSearch();
		}
		else if(!strncmp("0",str,1))
		{
			ShowMessage("       正在返回登录界面......");
			clear();
			refresh();
			break;
		}
		else 
		{
			ShowMessage("          输入错误,请重新输入");
			memset(str,0,sizeof(str));
			wclrtoeol(choice_win);
			refresh();
			continue;	
		}
	 }while (1);

	delwin(choice_win);
	refresh();
	UserLogin();
}

/*===========商品管理,包括添加,删除商品==================*/
void Manager_Mer()
{
	char str[10];

	WINDOW *manager_mer_win = newwin(15,40,6,20);
	WINDOW *choice_win = subwin(manager_mer_win,1,10,17,40);
   	
	wbkgd(manager_mer_win,COLOR_PAIR(9));
	wbkgd(choice_win,COLOR_PAIR(10));

	keypad(choice_win,TRUE);
    do
    {		
		box(manager_mer_win,0,0);
		mvwprintw(manager_mer_win,1,15,"商品管理");
		mvwprintw(manager_mer_win,3,12,"1.新增商品");
		mvwprintw(manager_mer_win,5,12,"2.添加商品");
		mvwprintw(manager_mer_win,7,12,"3.删除商品");
		mvwprintw(manager_mer_win,9,12,"0.返回后台管理界面");
		mvwprintw(manager_mer_win,11,12,"请选择:");
		wrefresh(manager_mer_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(manager_mer_win);
			clear();
			refresh();
			New_Mer();
		}

		else if(!strncmp("2",str,1))
		{
			delwin(manager_mer_win);
			clear();
			refresh();
			//调用添加商品数量函数
			Append_Mer();
		}
		else if(!strncmp("3",str,1))
		{
			delwin(manager_mer_win);
			clear();
			refresh();
			Del_Mer();
		}
		else if(!strncmp("0",str,1))
		{
			ShowMessage("     正在返回后台管理菜单......");
			delwin(manager_mer_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);
}

/*===========新增一种商品=============*/
void New_Mer()
{
	char add_bar_code[20];//条形码
	char add_mer_name[20];//名称
	char add_unit[20];//单位
	char add_spec[20];//规格
	char add_sell_price[20];//售价
	char add_stock_price[20];//进货价格
	char add_mer_amount[20];//数量
	char add_mer_agio[20];//折扣
	
	float sell_price;
	float stock_price;
	int mer_amount;	
	float mer_agio;

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

	WINDOW *addmer  = newwin(20,60,5,10);
	wbkgd(addmer,COLOR_PAIR(9));
	box(addmer,0,0);
	wrefresh(addmer);
	
	mvwprintw(addmer,1,25,"添加商品");	
	mvwprintw(addmer,3,13,"条形码:");
	mvwprintw(addmer,5,15,"名称:");
	mvwprintw(addmer,7,15,"单位:");
	mvwprintw(addmer,9,15,"规格:");
	mvwprintw(addmer,11,15,"售价:");
	mvwprintw(addmer,13,11,"进货价格:");
	mvwprintw(addmer,15,15,"数量:");
	mvwprintw(addmer,17,15,"折扣:");	
	wrefresh(addmer);
	//条形码
	WINDOW *bar_code_win = subwin(addmer,1,20,8,33);
	wbkgd(bar_code_win,COLOR_PAIR(10));
	touchwin(addmer);
	wrefresh(bar_code_win);
	//名称
	WINDOW *mer_name_win = subwin(addmer,1,20,10,33);
	wbkgd(mer_name_win,COLOR_PAIR(10));
	touchwin(addmer);
	wrefresh(mer_name_win);	
	//单位
	WINDOW *mer_unit_win = subwin(addmer,1,20,12,33);
    wbkgd(mer_unit_win,COLOR_PAIR(10));
    touchwin(addmer);
    wrefresh(mer_unit_win);
	//规格
	WINDOW *mer_spec_win = subwin(addmer,1,20,14,33);
    wbkgd(mer_spec_win,COLOR_PAIR(10));
    touchwin(addmer);
    wrefresh(mer_spec_win);
	//售价
	WINDOW *sell_price_win = subwin(addmer,1,20,16,33);
    wbkgd(sell_price_win,COLOR_PAIR(10));
    touchwin(addmer);
    wrefresh(sell_price_win);
	//进货价格
	WINDOW *stock_price_win = subwin(addmer,1,20,18,33);
    wbkgd(stock_price_win,COLOR_PAIR(10));
    touchwin(addmer);
    wrefresh(stock_price_win);
	//数量
	WINDOW *mer_amount_win = subwin(addmer,1,20,20,33);
    wbkgd(mer_amount_win,COLOR_PAIR(10));
    touchwin(addmer);
    wrefresh(mer_amount_win);
	//折扣
	WINDOW *mer_agio_win = subwin(addmer,1,20,22,33);
    wbkgd(mer_agio_win,COLOR_PAIR(10));
    touchwin(addmer);
	wrefresh(mer_agio_win);

	echo();
	//判断输入的条形码是否正确
	do
	{
		memset(add_bar_code,0,sizeof(add_bar_code));

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

	//输入商品名称,这里允许用户输入中文的商品名称
	do
	{
		memset(add_mer_name,0,sizeof(add_mer_name));

		mvwgetnstr(mer_name_win,0,0,add_mer_name,20);
		
		if(strlen(add_mer_name) == 0)
		{
			ShowMessage("    输入错误，商品名称不可以为空");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(mer_name_win);
			continue;
		}
		break;
	}while(1);
	
	//输入商品单位
	mvwgetnstr(mer_unit_win,0,0,add_unit,20);

	//输入商品规格
	mvwgetnstr(mer_spec_win,0,0,add_spec,20);

	j=0;
	temp=0;
	//输入商品售价
	do
	{
		memset(add_sell_price,0,sizeof(add_sell_price));	
		mvwgetnstr(sell_price_win,0,0,add_sell_price,20);

		for(i=0;i<strlen(add_sell_price);i++)
		{
			if(add_sell_price[i] == '.')
			{
				j++;
				continue;
			}
			if(!isdigit(add_sell_price[i]))
			{
				temp = 1;
				break;
			}
		}
		if(1 == temp)
		{			
			ShowMessage("        输入错误，输入的必须为数字");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(sell_price_win);
			wrefresh(sell_price_win);
			temp = 0;
			continue;
		}
		if(j>=2)
		{
			ShowMessage("      您输入了多个小数点，请重新输入");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(sell_price_win);
			wrefresh(sell_price_win);
			j = 0;
			continue;
		}		
		break;
	}while (1);

	sell_price = atof(add_sell_price);//把用销售价格换成FLOAT型

	j=0;
	temp=0;
	//输入进货价格
	do
	{
		memset(add_stock_price,0,sizeof(add_stock_price));	
		mvwgetnstr(stock_price_win,0,0,add_stock_price,20);

		for(i=0;i<strlen(add_stock_price);i++)
		{
			if(add_stock_price[i] == '.')
			{
				j++;
				continue;
			}
			if(!isdigit(add_stock_price[i]))
			{
				temp = 1;
				break;
			}
		}
		if(1 == temp)
		{			
			ShowMessage("        输入错误，输入的必须为数字");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(stock_price_win);
			wrefresh(stock_price_win);
			temp = 0;
			continue;
		}
		if(j>=2)
		{
			ShowMessage("      您输入了多个小数点，请重新输入");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(stock_price_win);
			wrefresh(stock_price_win);
			j = 0;
			continue;
		}		
		break;
	}while (1);
	stock_price = atof(add_stock_price);//装换才float
	
	j=0;
	temp=0;
	//输入数量
	do
	{
		memset(add_mer_amount,0,sizeof(add_mer_amount));	
		mvwgetnstr(mer_amount_win,0,0,add_mer_amount,20);

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

	mer_amount = atoi(add_mer_amount);

	//要求输入折扣
	
	j=0;
	temp=0;
	do
	{
		memset(add_mer_agio,0,sizeof(add_mer_agio));	
		
		mvwgetnstr(mer_agio_win,0,0,add_mer_agio,20);
		
		for(i=0;i<strlen(add_mer_agio);i++)
		{
			if(add_mer_agio[i] == '.')
			{
				j++;
				continue;
			}
			if(!isdigit(add_mer_agio[i]))
			{
				temp = 1;
				break;
			}
		}
		if(1 == temp)
		{			
			ShowMessage("        输入错误，输入的必须为数字");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(mer_agio_win);
			wrefresh(mer_agio_win);
			temp = 0;
			continue;
		}
		if( j >= 2)
		{
			ShowMessage("      您输入了多个小数点，请重新输入");
			touchwin(addmer);
			wrefresh(addmer);
			wclrtoeol(mer_agio_win);
			wrefresh(mer_agio_win);
			j = 0;
			continue;
		}		
		break;
		
	}while (1);

	mer_agio = atof(add_mer_agio);//把折扣保存到FLOAT

	//把正确的数据保存到数据库,保存到商品表
	
	if(Save_New_Mer(add_bar_code,add_mer_name,add_unit,add_spec,sell_price,stock_price,mer_amount,mer_agio))
	{
		ShowMessage("        新增商品成功，按任意键返回");
		touchwin(addmer);
		wrefresh(addmer);
	}
	else
	{
		ShowMessage("        新增商品失败，按任意键返回");
		touchwin(addmer);
		wrefresh(addmer);
	}
	
	noecho();
	ch = mvwgetch(addmer,19,30);
	echo();

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


/*===============增加已有商品数量=============*/
void Append_Mer()
{
	char append_bar_code[20];
	char append_mer_amount[20];

	int mer_amount;