课程设计综合设计任务-商品月销售基本信息管理软件设计.doc

51 x2x345/* *C+ */#include#include#include#include struct productint number;char name20;double price;char address20;int total_num; /*double total_sale; /*int stocks; /*;void write(); /void sell(); /void in(); /void search(); /void stat(); /char Exit(); /int Menu(); /int main()cout qTTTTTTTTTTTTTTTrendl;cout U Uendl;cout qTTTTTT TTTTTTrendl;cout U U U Uendl;cout U tTTTTTTTTTTTTTTTs Uendl;cout U qTTTTTTTTTTTTTTTTTTTTTTTr Uendl;cout U U U U endl;cout;cout endl;coutendlendl;int select;char s;while(1)select=Menu();switch(select)case 1:write();break;case 2:sell();break;case 3:in();break;case 4:search();break;case 5:stat();break;case 6:s=Exit();if(s=Y|s=y)return 0;break;default:coutendl;return 0;void write()product pro;int i, n;ofstream outfile(info.dat,ios:out|ios:binary);if(!outfile)cout;return;cout:n;for(i=0;in;i+)couti+1pro.number;;cinpro.price;cinpro.address;cinpro.total_num;cinpro.total_sale;/*pro.total_sale=pro.total_num*pro.price;*cinpro.stocks;outfile.write(char*)&pro, sizeof(pro); /*outfile.close();void sell() /*product pro;int n, x;fstream mfile(info.dat,ios:in|ios:out|ios:binary);coutn;domfile.read(char*)&pro,sizeof(pro);while(pro.number!=n&!mfile.eof();if(!mfile.eof()coutendl;endl;coutpro.stocksendl;coutpro.priceendl;coutpro.total_saleendl;elsecoutendl;coutx;if(pro.stocksx)pro.stocks-=x; /*elsecoutendl;pro.total_sale+=pro.price*x; /*mfile.seekp(-(int)sizeof(pro),ios:cur);mfile.write(char*)&(pro),sizeof(pro);coutendl;endl;coutpro.stocksendl;coutpro.priceendl;coutpro.total_saleendl;mfile.close();void in() /*product pro;int n, x;fstream mfile(info.dat,ios:in|ios:out|ios:binary);coutn;domfile.read(char*)&pro,sizeof(pro);while(pro.number!=n&!mfile.eof();if(!mfile.eof()coutendl;endl;coutpro.stocksendl;coutpro.priceendl;coutpro.total_saleendl;elsecoutendl;return;coutx;pro.stocks+=x; /*pro.total_sale-=pro.price*x; /*mfile.seekp(-(int)sizeof(pro),ios:cur);mfile.write(char*)&(pro),sizeof(pro);coutendl;endl;coutpro.stocksendl;coutpro.priceendl;coutpro.total_saleendl;mfile.close();void search() /*product pro;int n;fstream mfile(info.dat,ios:in|ios:binary);coutn;/*domfile.read(char*)&pro,sizeof(pro);while(pro.number!=n&!mfile.eof();if(!mfile.eof()endl;coutpro.stocksendl;coutpro.priceendl;elsecoutendl;mfile.close();void stat() /*product pro;double t=0.0;int num=0;char n20;fstream mfile(info.dat,ios:in|ios:binary);domfile.read(char*)&pro,sizeof(pro);if(tpro.total_sale)t=pro.total_sale;num=pro.number;strcpy(n,);while(!mfile.eof();coutendl;coutnumtnttendl;int Menu()cout=endl;int n=1, select=-1;coutn+ ;coutn+ ;coutn+ ;coutn+ ;coutn+ ;coutn+endlendl;coutselect;re