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1、/*程序名：supermarket.c*//*作者：ZhangDaPan*//*编程日期：2011-06-10*/#include#include#include#include#include#include//#defineNULL0/*****函数说明*******/voidlogin();voidfront_user();voidback_user();voidgoods();voidsale();voidgoodswarm()
2、;voidmember();/****结构体定义********/structmember{intnumber;charname[20];floatsale_sum;charlever;structmember*next;};structgoods{intgoodsnum;chargoodsname[30];floatprice;intamount;intline;structgoods*next;};structuser{charusername[10];charpassword[10];chartype;structuser*next;};
3、/*******全局变量定义*******/structgoods*goods_head=NULL;structmember*member_head=NULL;structuser*user_head=NULL;/*******************************************主函数*************************************/main(){//导入user数据：从文件中导入事先写好的数据；structuser*user_p;FILE*user_fp;structgoods*goods_p;F
4、ILE*goods_fp;user_fp=fopen("d:\user.txt","r");user_p=(structuser*)malloc(sizeof(structuser));user_head=user_p;fscanf(user_fp,"%s",user_p->username);//printf("%s",user_p->username);fscanf(user_fp,"%s",user_p->password);//printf("%s",user_p->password);fscanf(user_fp,"%c
5、",&(user_p->type));//printf("%c",user_p->type);user_p->next=NULL;while(!feof(user_fp))//注释：feof(fp)指的是未遇到文件结束为0，!feof(fp)为1，即为真，则执行while循环{user_p->next=(structuser*)malloc(sizeof(structuser));//为user_p->next在内存动态存储空间分配大小为sizeof(structuser)字节的连续区域user_p=user_p->next;fscanf(
6、user_fp,"%s",user_p->username);//printf("%s",user_p->username);fscanf(user_fp,"%s",user_p->password);//printf("%s",user_p->password);fscanf(user_fp,"%c",&(user_p->type));//printf("%c",user_p->type);user_p->next=NULL;}//user_p=user_head;//调试时用；//while(user_p)//{//prin
7、tf("%s,",user_p->username);//printf("%s,",user_p->password);//printf("%c,",user_p->type);//user_p=user_p->next;////}fclose(user_fp);//getchar();/************************导入goods数据*******************************************/goods_fp=fopen("d:\goods.txt","r");goods_p=(structgo
8、ods*)malloc(sizeof(structgoods));goods_head=goods_p;fscanf(goods_fp,"%d",&(
