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