From 4828e673260ee36d82bef54594e71dfe99da4677 Mon Sep 17 00:00:00 2001
From: "18408000311@stu.hut.edu.cn" <18408000311@stu.hut.edu.cn>
Date: Thu, 10 Jan 2019 08:36:50 +0800
Subject: [PATCH] first commit

---
 hahaha.c | 301 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 301 insertions(+)
 create mode 100644 hahaha.c

diff --git a/hahaha.c b/hahaha.c
new file mode 100644
index 0000000..542ebcd
--- /dev/null
+++ b/hahaha.c
@@ -0,0 +1,301 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+#define SIZE  100
+struct product//数据结构
+{
+	long number;   //商品编号
+	char name[20];  //商品名称
+	float inprice;  //商品进价
+	float outprice;  //商品售价
+	int count;    //商品数量 
+ } ;
+ int main(){
+ 	system("color 8A");
+ 	FILE *fp;
+ 	void Remined();//打印清单函数声明
+	 void menu();//菜单函数声明
+	 void In();//商品进库管理函数声明
+	 void Out();//商品出库管理函数声明
+	 void Add();//创建新商品信息函数声明
+	 void Del();//清楚商品信息函数声明 
+	 void Sale();//销售统计函数声明
+	 void Exit();//退出函数声明 
+	 fp=fopen("商品信息","a+");//创建商品信息文件 
+	 fclose(fp);
+	 fp=fopen("清单","w+");//创建清单文件
+	 fclose(fp); 
+	 menu();
+ }
+  
+ //增加新商品函数 
+ void Add(){
+ 	FILE *fp;
+ 	char m;
+ 	struct product inf;
+ 	void menu();
+ 	//录入各个信息
+	 printf("请输入商品编号\n");//编号 
+	 scanf("%ld",&inf.number);
+	 printf("请输入商品数量\n");//数量 
+	 scanf("%d",&inf.count); 
+	 printf("请输入商品进价\n");
+	 scanf("%f",&inf.inprice);
+	 printf("请输入商品售价\n");
+	 scanf("%f",&inf.outprice);
+	 printf("请输入商品名称\n");
+	 scanf("%s",&inf.name);
+	 fp=fopen("商品信息","a+");
+	 if(fp==NULL)
+	 printf("");
+	 fwrite(&inf,sizeof(struct product),1,fp);
+	 fclose(fp);
+	 //询问是否继续输入 
+	 printf("是否继续输入？ 是 输入'Y';返回主菜单 输入'N'\n");
+     getchar();	 
+	 m=getchar();
+	 if(m=='Y'||m=='y')
+	 Add();
+	 if(m=='N'||m=='n')
+	 menu();
+ }
+ //进货模块 
+ void In(){
+ 	FILE *fp;
+ 	void menu();
+ 	int i,b;
+ 	char m;
+ 	long number;
+ 	int count;
+ 	struct product inf[SIZE];
+ 	struct product inf1;
+ 	//输入商品的各种信息
+	 fp=fopen("商品信息","r");
+	  if((fp=fopen("商品信息","r"))==NULL)
+	  printf("打开商品信息文件出错\n");
+	  printf("请输入商品编号\n");//编号 
+	   scanf("%ld",&number);
+	   printf("请输入商品数量\n");//数量
+	   scanf("%d",&count);
+	   //将所有信息从文件中读出，进行修改 
+	    i=0;
+	    while(fread(&inf1,sizeof(struct product),1,fp)!=(int)NULL){
+	    	if(inf1.number!=number){
+	    		inf[i].number=inf1.number;
+	    		strcpy(inf[i].name,inf1.name);
+	    		inf[i].inprice=inf1.inprice;
+	    		inf[i].outprice=inf1.outprice;
+	    		inf[i].count=inf1.count;
+	    		i++;
+			}
+			else{
+	    		inf[i].number=inf1.number;
+	    		inf[i].inprice=inf1.inprice;
+	    		inf[i].outprice=inf1.outprice;
+	    		inf[i].count=count+inf1.count;
+				strcpy(inf[i].name,inf1.name);
+				i++;				
+			}
+		}
+		fclose(fp);
+		if((fp=fopen("商品信息","w+"))==NULL)
+		printf("打开商品信息文件出错\n");
+		for(b=0;b<i;b++){
+			if(fwrite(&inf[b],sizeof(struct product),1,fp)==!1)
+			printf("写入商品信息文件出错\n");
+		} fclose(fp);
+		//询问是否继续输入
+		printf("是否继续输入？ 是 输入'Y';返回主菜单 输入'N'\n");
+		getchar();
+		m=getchar();
+		if(m=='Y'||m=='y')
+		In(); 
+		 if(m=='N'||m=='n')
+		 menu();
+ }
+ //出货模块 
+ void Out(){
+ 	FILE *fp;
+ 	void menu();
+ 	char m;
+ 	float money=0;
+ 	long number;
+ 	int count,i,b;
+ 	struct product inf[SIZE],inf1;
+ 	struct product list;
+ 	//输入商品的各种信息
+	 if((fp=fopen("商品信息","rb"))==NULL) 
+ 	printf("打开商品信息文件出错\n");
+ 	printf("请输入商品编号\n");//编号 
+	   scanf("%ld",&number);
+	   printf("请输入商品数量\n");//数量
+	   scanf("%d",&count);
+	   i=0;
+ 	while(fread(&inf1,sizeof(struct product),1,fp)!=(int)NULL){
+ 		if(inf1.number!=number){
+	    		inf[i].number=inf1.number;
+	    		strcpy(inf[i].name,inf1.name);
+	    		inf[i].inprice=inf1.inprice;
+	    		inf[i].outprice=inf1.outprice;
+	    		inf[i].count=inf1.count;
+	    		i++;
+	    	}
+	    	else{
+	    		inf[i].number=number;
+	    		inf[i].inprice=inf1.inprice;
+	    		inf[i].outprice=inf1.outprice;
+	    		inf[i].count=(inf1.count-count);
+	    		strcpy(inf[i].name,inf1.name);
+	    		list.number=number;
+	    		list.count=count;
+	    		list.inprice=inf1.inprice;
+	    		list.outprice=inf1.outprice;
+	    		strcpy(list.name,inf1.name);
+	    		money=(list.count)*(list.outprice);
+	    		i++;
+			}
+	 }
+	 fclose(fp);
+		if((fp=fopen("商品信息","w+"))==NULL)
+		printf("打开商品信息文件出错\n");
+		for(b=0;b<i;b++){
+			if(fwrite(&inf[b],sizeof(struct product),1,fp)==(int)NULL)
+			printf("写入商品信息文件出错\n");
+		} fclose(fp);
+		fp=fopen("清单","a+");
+		fwrite(&list,sizeof(struct product),1,fp);
+		fclose(fp);
+		printf("是否打印本次清单？是 输入'Y';返回主菜单 输入'N'\n");
+		getchar();
+		m=getchar();
+		if(m=='y'||m=='Y')
+		printf("商品编号     商品名称    进价    售价    金额\n");
+		printf("%3l%s%3.lf%3.lf\n",list.number,list.name,list.inprice,list.outprice,money);
+		printf("是否继续输入？是 输入'Y'或'y';否 输入'N'或'n'\n");
+		getchar();
+		m=getchar();
+		if(m=='y'||m=='Y')
+		Out();
+		if(m=='N'||m=='n')
+		menu();
+ }
+ 
+ //清除模块
+ void Del(){
+ 	int i,b;
+ 	void menu();
+ 	long number;
+ 	struct product inf[SIZE],infd;
+ 	char m;
+ 	FILE *fp;
+ 	printf("请输入商品编号\n"), 
+ 	scanf("%ld",&number);
+ 	fp=fopen("商品信息","r");
+ 	if(fp=NULL)
+ 	printf("打开文件出错\n");
+ 	//将文件内容读出后重新写入 
+ 	i=0;
+ 	while(fread(&infd,sizeof(struct product),1,fp)!=(int)NULL)
+{
+	if(infd.number!=number){
+		inf[i].number=infd.number;
+		inf[i].count=infd.count;
+		inf[i].inprice=infd.inprice;
+		inf[i].outprice=infd.outprice;
+		strcpy(inf[i].name,infd.name);
+		i++;
+	}
+	 } 	
+    fclose(fp);
+     if(fopen("商品信息","w+")==NULL)
+     printf("打开商品信息文件出错\n");
+     for(b=0;b<i;b++)
+     if(fwrite(&inf[b],sizeof(struct product),1,fp)==1)
+     printf("写入商品信息文件出错\n");
+     fclose(fp);
+     //询问是否继续输入 
+     printf("是否继续输入？是 输入'Y'或'y';否 输入'N'或'n'\n");
+     getchar();
+     m=getchar();
+     if(m=='Y'||m=='y')
+     Del();
+     if(m=='N'||m=='n')
+     menu();
+ } 
+ //退出模块
+ void Exit(){
+ 	char m;
+ 	void menu();
+ 	printf("是否确认？ 是 输入'Y'或'y';否 输入'N'或'n'\n");
+ 	getchar();
+ 	m=getchar();
+ 	if(m=='Y'||m=='y')
+ 	exit(1);
+ 	if(m=='N'||m=='n')
+ 	menu();
+ } 
+ //清单模块
+ void Sale()
+ {
+ 	char m;
+ 	void menu();
+ 	struct product list;
+ 	FILE *fp;
+ 	printf("确认打印？是 输入y; 不是输入n\n");
+ 	getchar();
+ 	m=getchar();
+ 	if(m=='Y'||m=='y'){
+ 		fp=fopen("清单","r");
+ 		printf("商品名称  商品编号  商品售价  总金额   销售数量\n");
+ 		while(fread(&list,sizeof(struct product),1,fp)!=(int)NULL)
+ 		printf("%s  %5ld   %3.lf   %3.lf   %d\n",list.name,list.number,list.outprice,(list.count*list.outprice),list.count);
+	 }
+	 printf("按任意键返回菜单\n");
+	 getchar();
+	 getchar();
+	 menu();  
+  if(m=='n'||m=='N')
+  menu(); 
+}
+//显示库存函数
+void Remined(){
+	struct product list1;
+	FILE *fp;
+	void menu();
+	fp=fopen("商品信息","r");
+	printf("商品编号    商品名称   商品进价   商品售价   库存量\n");
+	while(fread(&list1,sizeof(struct product),1,fp)!=(int)NULL)
+	printf("%ld   %s   %f   %f   %d\n",list1.number,list1.name,list1.inprice,list1.outprice,list1.count);
+	printf("按任意键返回菜单\n");
+	getchar();
+	getchar(); 
+	menu();
+} 
+void menu()//菜单模块
+ {
+ 	int choice;
+ 	printf("#######################################################################\n");
+ 	printf("#                                                                     #\n");
+ 	printf("#------------------欢 迎 来 到 商 店 销 售 管 理 系 统----------------#\n");
+  	printf("#                                                                     #\n");
+    printf("#######################################################################\n");
+printf("请输入你要使用的功能编号\n");
+printf("0-------------退出\n");
+printf("1-------------商品进库管理\n");
+printf("2-------------商品出库管理\n");
+printf("3-------------创建新商品信息\n");
+printf("4-------------清除商品信息\n");
+printf("5-------------销售统计\n");
+printf("6-------------显示库存量\n");
+  scanf("%d",&choice);
+  switch(choice){
+  	case 0:Exit();
+  	case 1:In();break;
+  	case 2:Out();break;
+  	case 3:Add();break;
+  	case 4:Del();break;
+  	case 5:Sale();break;
+  	case 6:Remined();break;
+    default:main(); 
+  } 
+  }