c++庫房管理系統#include<iostream>#include<fstream>usingnamespacestd;constintm=100;//定義常量mclassStore//定義類{private:intnum;//編號charname[20];//名稱doubleprice;//價錢intquantity;//數目intamount;//數目public:voidInput( );intInput_2( );voidDig( );voidChange( );voidSearch_num( );voidSearch_name( );voidShow( );voidShort( );voidDelete( );}goods[m];voidStore::Input( )//創(chuàng)立表單{inti,n;cout<<"請輸入貨物總數:";cin>>amount;cout<<endl;for(i=0;i<amount;i++){cout<<"這是第"<<(i+1)<<"貨物信息"<<endl;goods[i].num=i+1;cout<<"貨物名:";cin>>goods[i].name;cout<<"單價:";cin>>goods[i].price;cout<<"庫存量:";cin>>goods[i].quantity;cout<<endl;}cout<<"\n輸入的信息:"<<endl;for(i=0;i<amount;i++){cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}ofstreamos("goods.txt",ios_base::out|ios_base::binary);//創(chuàng)立、翻開文件for(n=0;n<amount;n++){os.write(reinterpret_cast<char*>(&(goods[n])),sizeof(Store));//導出文件}os.close( );//封閉文件}intStore::Input_2( )//文件讀入{inti,n;ifstreamis("goods.txt",ios_base::in|ios_base::binary);if(!is){cout<<"翻開失敗"<<endl;return0;}for(i=0;is.read(reinterpret_cast<char*>(goods+i),sizeof(Store));i++)amount=i;cout<<"導入的表單："<<endl;for(n=0;n<amount;n++){cout<<"貨號:"<<goods[n].num<<ends;cout<<"貨物名:"<<goods[n].name<<ends;cout<<"單價:"<<goods[n].price<<ends;cout<<"庫存量:"<<goods[n].quantity<<ends<<endl;}return1;}voidStore::Dig( )//插入信息{inti,n,m;cout<<"請輸入增添的貨物總數:";cin>>n;cout<<endl;for(i=0;i<n;i++){cout<<"這是第"<<(i+1)<<"貨物信息"<<endl;goods[amount+i].num=amount+i+1;cout<<"貨物名:";cin>>goods[amount+i].name;cout<<"單價:";cin>>goods[amount+i].price;cout<<"庫存量:";cin>>goods[amount+i].quantity;}cout<<"\n輸入的信息"<<endl;for(i=0;i<amount+n;i++){cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}amount=amount+n;ofstreamos("goods.txt",ios_base::out|ios_base::binary);//創(chuàng)立、翻開文件for(m=0;m<amount;m++){os.write(reinterpret_cast<char*>(&(goods[m])),sizeof(Store));//導出文件}os.close( );//封閉文件};voidStore::Change( )//改正信息{intn,i,m;cout<<"要改正第幾個貨物的信息（輸入貨號）：";cin>>n;cout<<endl;cout<<"請輸入改正的信息"<<endl;cout<<"貨物名:";cin>>goods[n-1].name;cout<<"單價:";cin>>goods[n-1].price;cout<<"庫存量:";cin>>goods[n-1].quantity;cout<<endl;cout<<"改正后的信息："<<endl;for(i=0;i<amount;i++){cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}ofstreamos("goods.txt",ios_base::out|ios_base::binary);//創(chuàng)立、翻開文件for(m=0;m<amount;m++){os.write(reinterpret_cast<char*>(&(goods[m])),sizeof(Store));//導出文件}os.close( );//封閉文件}voidStore::Search_num( )//按編號查{intn;cout<<"請輸入貨號:";do{cin>>n;cout<<endl;if(n<=amount){cout<<"貨號:"<<goods[n-1].num<<ends;cout<<"貨物名:"<<goods[n-1].name<<ends;cout<<"單價:"<<goods[n-1].price<<ends;cout<<"庫存量:"<<goods[n-1].quantity<<ends<<endl;}elseif(n>amount){cout<<"輸入錯誤，請從頭輸入:"<<ends;}}while(n>amount);};voidStore::Search_name( )//按名稱查{intflag=0;inti;charx[20];cout<<"請輸入貨物名:";do{cin>>x;cout<<endl;for(i=0;i<amount;i++){if(strcmp(goods[i].name,x)==0)//strcmp用來比較字符串.tname和x{flag=1;cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}else;}if(flag==0)cout<<"輸入錯誤，請從頭輸入:"<<ends;}while(flag==0);};voidStore::Show( )//顯示信息{inti;for(i=0;i<amount;i++){cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}};voidStore::Short( )//查問不足貨物{intflag=0;inti;inty;cout<<"請查問庫存量:";do{cin>>y;cout<<endl;for(i=0;i<amount;i++){if(goods[i].quantity<=y){flag=1;cout<<"貨號:"<<goods[i].num<<ends;cout<<"貨物名:"<<goods[i].name<<ends;cout<<"單價:"<<goods[i].price<<ends;cout<<"庫存量:"<<goods[i].quantity<<ends<<endl;}else;}if(flag==0)cout<<"沒有貨物，請從頭輸入:"<<ends;}while(flag==0);};voidStore::Delete( )//刪除貨物{chary[20];intn,m;cout<<"請輸入要刪除的貨物名:";cin>>y;for(inti=0;i<amount;i++){if(strcmp(goods[i].name,y)==0)//strcmp用來比較字符串.tname和y{for(;i<amount;i++){goods[i]=goods[i+1];goods[i].num=i+1;}amount=amount-1;//貨物數減一}}cout<<"刪除后貨單："<<endl;for(m=0;m<amount;m++){cout<<"貨號:"<<goods[m].num<<ends;cout<<"貨物名:"<<goods[m].name<<ends;cout<<"單價:"<<goods[m].price<<ends;cout<<"庫存量:"<<goods[m].quantity<<ends<<endl;}ofstreamos("goods.txt",ios_base::out|ios_base::binary);//創(chuàng)立、翻開文件for(n=0;n<amount;n++){os.write(reinterpret_cast<char*>(&(goods[n])),sizeof(Store));//導出文件}os.close( );//封閉文件};voidClear( )//清屏函數{chara;a=getchar( );system("cls");}voidmenuPrint( )//主菜單{cout<<"\t*****庫房管理*****"<<endl;cout<<"\t*1.輸入貨物信息*"<<endl;cout<<"\t*2.查問貨物信息*"<<endl;cout<<"\t*3.顯示貨物信息*"<<endl;cout<<"\t*4.顯示不足貨物*"<<endl;cout<<"\t*5.刪除貨物信息*"<<endl;cout<<"\t*6.退出系統*"<<endl;cout<<"\t**********************"<<endl;cout<<"請輸入你要進行的操作(1~6):"<<endl;}intmain( )//主函數{StoreGoods;//定義對象intn;do{menuPrint( );//調用主菜單cin>>n;cout<<endl;switch(n){case1://輸入貨物信息{inta;cout<<"輸入方式"<<endl;cout<<"1.創(chuàng)立表單"<<endl;cout<<"2.從文件導入"<<endl;cout<<"3.插入信息"<<endl;cout<<"4.改正信息"<<endl;cout<<"5.返回主菜單"<<endl;cin>>a;cout<<endl;switch(a){case1://調用創(chuàng)立函數Goods.Input( );break;case2://調用文件讀入函數Goods.Input_2( );break;case3://調用增添函數Goods.Dig( );break;case4://調用增添函數Goods.Change( );break;case5:break;default:cout<<"您的輸入有誤,請從頭選擇"<<endl;break;}break;}case2://查問{inta;cout<<"查問方式"<<endl;cout<<"1.按編號查問"<<endl;cout<<"2.按名稱查問"<<endl;cout<<"3.返回主菜單"<<endl;cin>>a;cout<<endl;switch(a){case1://調用函數（按貨號查）Goods.Search_num( );break;case2:/