超市管理系统课程设计源码C++.doc

/ supermarket.cpp : Defines the entry point for the console application./#include stdafx.h/ / int main(int argc, char* argv)/ / return 0;/ #include#include#include#include#include int n=0; /全局数据,结点数量 class Goodsprotected: char name20; /商品名称 double num; /商品代码 char address30; /商品产地 int price; /商品单价 double count; /该类商品库存量 Goods *next; public: Goods(double num,char*name,char*address,int price,double count) this-num=num; strcpy(this-name,name); strcpy(this-address,address); this-price=price; this-count=count; void Output() coutnum:num name:name address:address price:price count:countnext; delete goods; goods=p; goods=NULL; void Add(); /增加商品 void Delete(); /删除商品 void Modify(); /修改商品 void Query(); /查询商品 void Add_up(); /统计商品 void Save(); /基础数据存盘 void Load(); /基础数据装入 void good_initial(double num,double count,char name20,char address30,int price); /物品初始化; void Supermarket:Clear() /清除内存中商品数据（内部使用） Goods* p; p=goods; while(p) goods=p-next; delete p; p=goods; void Supermarket:Add() Goods *p; double num,count; char name20,address30; int price; coutn请输入新增商品信息：n; coutnum; coutname; coutaddress; coutprice; coutcount; /创建新商品类结点 p=new Goods(num,name,address,price,count); p-next=NULL; if(goods=NULL) goods=p; n+; else Goods *p2=goods; while(p2-next) p2=p2-next; p2-next=p; n+; void Supermarket:good_initial(double num,double count,char name20,char address30,int price) Goods *p;/创建新商品类结点p=new Goods(num,name,address,price,count);p-next=NULL;if(goods=NULL)goods=p;n+; elseGoods *p2=goods;while(p2-next)p2=p2-next;p2-next=p;n+; void Supermarket:Delete() /删除商品 char name20; coutname; /查找要删除的结点 Goods *p1,*p2; p1=goods; while(p1) if(strcmp(p1-name,name)=0) break; else p2=p1; p1=p1-next; /删除结点 if(p1!=NULL) /若找到结点，则删除 if(p1=goods) /若要删除的结点是第一个结点 goods=p1-next; delete p1; n-; else /若要删除的结点是后续结点 p2-next=p1-next; delete p1; n-; cout找到并删除n; else /未找到结点 coutSorry,未找到!n; void Supermarket:Modify() /修改商品信息 double num,count; char name20,address30; int price; coutn 修改商品，请输入要查的商品名称：n; coutname; /查找要修改的结点 Goods *p1,*p2; p1=goods; while(p1) if(strcmp(p1-name,name)=0) break; else p2=p1; p1=p1-next; /修改结点 if(p1!=NULL) /若找到结点 p1-Output(); couta; switch(a) case 1:coutnum; strcpy(name,p1-name);strcpy(address,p1-address);price=p1-price;count=p1-count; break; case 2:coutname; num=p1-num;strcpy(address,p1-address);price=p1-price;count=p1-count; break; case 3:coutaddress; num=p1-num;strcpy(name,p1-name);price=p1-price;count=p1-count; break; case 4:coutprice; num=p1-num;strcpy(name,p1-name);strcpy(address,p1-address);count=p1-count; break; case 5:coutcount; num=p1-num;strcpy(name,p1-name);strcpy(address,p1-address);price=p1-price; break; case 6:cout请输入新信息：n; coutnum; coutname; coutaddress; coutprice; coutcount; break; /创建新商品结点 Goods *p3; p3=new Goods(num,name,address,price,count); /员工结点替换到链表 p3-next=p1-next; if(p1=goods) /若要替换的结点是第一个结点 goods=p3; else /若要替换的结点是后续结点 p2-next=p3; delete p1; /删除原来的商品结点 cout修改成功!n; else /未找到结点 coutSorry,未找到!n; void Supermarket:Query() coutn*查询商品*n; char name20; coutname; Goods *p1=goods; while(p1) if(strcmp(p1-name,name)=0) break; else p1=p1-next; if(p1!=NULL) /若找到结点 coutn要查询的信息如下：n; cout该类商品代码:tnumt该类商品名称:tnametn; cout该类商品产地:taddresst该类商品单价:tpricetn; cout该类商品库存量:tcountt; else /未找到结点 coutnSorry,未找到该类商品!n; void Supermarket:Add_up() /统计超市商品总数量于价值 coutn*商品统计*n; double Amount=0,Value=0; char name20; coutname; Goods *p1; p1=goods; while(p1) if(strcmp(p1-name,name)=0) break; else p1=p1-next; if(p1) while(p1) Amount+=p1-count; Value+=p1-count*p1-price; p1=p1-next; cout商品总数量是：n; coutAmount; coutn商品总价值是：n; coutValue; else coutnSorry,未找到该类商品!n; void Supermarket:Save() /数据存盘 couta; if(a=n)return; if(a=y|a=Y) ofstream outfile(base.txt,ios:out); if(!outfile)cerropen error!;exit(1); Goods* p;p=goods; while(p) outfile商品代码ttnumendl; outfile商品名称ttnameendl; outfile商品产地ttaddressendl; outfile商品单价ttpriceendl; outfile该商品库存量tcountendl; coutnext; outfile.close(); coutp-nump-namep-addressp-pricep-count; while(infile.good() /创建商品结点 p=new Goods(p-num,p-name,p-address,p-price,p-count); p-next=NULL; /商品结点加入 if(goods) /若已存在结点 Goods*p2; p2=goods; while(p2-next) /查找尾结点 p2=p2-next; p2-next=p; /连接 else /表空 goods=p; /连接 /读下一条信息 infilep-nump-namep-addressp-pricep-count; coutn商品数据已经装入n; int main() char c; Supermarket a; a.good_initial(1.0,100,yili,内蒙古,3); a.good_initial(1.0,100,beer,山东,3); a.good_initial(2.0,50,pc,北京,5000); do coutn*超市进销存管理系统*n; cout 1增加商品n; cout 2删除商品n; cout 3修改商品n; cout 4查询商品n; cout 5统计商品n;