物品存放管理.txt

物品存放的管理C++源程序 用于管理物品的小软件 适合课程设计

/*第2题	物品库存管理--源代码及关键源代码注解如下：*/
// file operations
#include<iostream.h>
#include<conio.h>
#include<stdio.h>       //for gets and puts
#include<process.h>     //exit(1)
#include<fstream.h>      //file operations
#include<string.h>
#include<dos.h>
      class Brand
		{
			private:
				char    brnd_name[20];
				int     Brand_code;
				int     quantity;
            float     brnd_price;
			public:
				void getdata();
				void showdata();
      };
	class Item
		{
			private:
			char Item_name[10];
				int Item_code;
				char colour[10];
				int quantity;
				Brand brnd[3];
			     //Private Member functions used internally
		void getdata();
		void showdata();
		public:
		void add();
			void remove();
			void  search();
      void showab();
		};
//                            GET Brand DATA
//	 gets data about the Brand
//	 it it temperary storage

 void Brand::getdata()
	{
	cout<<"\n\nEnter Brand Name ";
      gets(brnd_name);
      cout<<"\nEnter Brand Code ";
      cin>>Brand_code;
      cout<<"\nEnter Quantity ";
      cin>>quantity;
      cout<<"\nEnter Price";
      cin>>brnd_price;
   }
//	SHOW Brand DATA 
  // shows the data of the Brand
	void Brand::showdata()
	{
	 cout<<"\n\nName          :  "; puts(brnd_name);
	 cout<<"\n\nCode          :  "; cout<<Brand_code;
	 cout<<"\n\nQuantity      :  "; cout<<quantity;
   cout<<"\nPrice           :  ";cout<<brnd_price;
    }
//	GET Item DATA 

  // gets data about the Item	it is temporary storage
      
 void Item::getdata()
	{
     cout<<"\nEnter Item Name ";
			gets(Item_name);
			cout<<"\nEnter Item Code  ";
			cin>>Item_code;
			cout<<"\nEnter Colour ";
			gets(colour);
			cout<<"\nEnter Quantity ";
			cin>>quantity;
			cout<<"\n\nEnter Brand 1 ";
				brnd[0].getdata();
			cout<<"\n\nEnter Brand 2 ";
				brnd[1].getdata();
			cout<<"\n\nEnter Brand 3 ";
				brnd[2].getdata();
}
//	SHOW Item DATA
   //shows data about the Item
   void Item::showdata()
	{
	 cout<<"\n\n\t\tItem Data";
	 cout<<"\n\nItem Name    :  ";
   puts(Item_name);
//写一个字符串到标准的输出流（或缓冲区）-Write a string to stdout
	 cout<<"\n\nItem Code    :  ";
   cout<<Item_code;
	 cout<<"\n\nColour   :  ";
   puts(colour);
	 cout<<"\n\nQuantity     :  ";
   cout<<quantity<<endl;
	 getch();
	// clrscr();
	 cout<<"\n\nBrand 1"<<endl; brnd[0].showdata();
 getch();
	//clrscr();
	 cout<<"\n\nBrand 2"<<endl; brnd[1].showdata();
 getch();
	//clrscr();
	 cout<<"\n\nBrand 3"<<endl; brnd[2].showdata();
      }
//	Add Item
   /* this function first gets data into temp storage then
      saves it on the hard disk
      */
	void Item::add()
	{
	  //clrscr();
	 ofstream file( "TIS.txt", ios::out |ios::ate ); //open file for input
		if(!file)   //if file could not be opened
			{
		   cout<<"Error Could Not Open File";
			   getch();
			   exit(1);
			}
		 Item p1;
		 p1.getdata();       //Get Data From User For Temp. Storage
	     //   write data to hard disk
	    file.write(reinterpret_cast <const char *> (&p1),sizeof(Item) );
	 }

//              TRAVERSE
  /*  this function shows the list of all the Brands */
  void Item::showab()
  	{
       //clrscr();
       ifstream file( "TIS.txt" ,ios::in);  //open file for output
                  	if(!file)   //if file could not be opened
                     	{
                           cout<<"Error Could Not Open File";getch();
                           exit(1);
                        }
                     Item p1;
                   file.read(reinterpret_cast<char *>(&p1),sizeof(Item));
                         //Store Data In Object
                     	while( !file.eof() ) //Untill Contacts Present
                        	{
                              //clrscr();
                           	p1.showdata() ;  //Display on Screen
                             getch();      //Wait For Keyboard Input
                            file.read(reinterpret_cast<char *> (&p1),
                              				sizeof(Item)); //Read Next Contact
                           }
          }

//   SEARCH 
 	void Item::search()
   	{
             //clrscr();
            char name1[10];
            int code;
            int option;
            cout<<"\n(1)Search By Name\n(2)Search By Code";
            cin>>option;
           	if(option==1)
            	{
               	cout<<"\nEnter Item name  ";
                  gets(name1);
                  code=0;
               }
            else
            	{
               	cout<<"\nEnter Code of Item To Search  ";
                  cin>>code;
                  strcpy(name1,"null");
               }
           fstream file( "TIS.txt" ,ios::in);  //Open File For Output/Read
                  	if(!file)  //If File Could Not Be Opened
                     	{
                           cout<<"Error Could Not Open File";
                           getch();
                           exit(1);
                        }
                    char flag='a';  //Flag To Check If Found
                     Item p1;;
                     file.read(reinterpret_cast<char *>(&p1),sizeof(Item));
                        //Read Data To Object
                     	while( !file.eof() )  //Untill There Are Contacts
                       	{
                     if((strcmp(p1.Item_name,name1)==0) || (p1.Item_code==code))  //Compare
                           			{
                                    //clrscr();
                                    p1.showdata();
                              		getch();
                                     flag='z';   //Set Flag
                                    break; //Break Loop
                                    }
                              file.read(reinterpret_cast<char *> (&p1),
                              				sizeof(Item));
                                     //Read Next Contact
                           }
                     if(flag !='z')  //If Not Found
                        {
                        cout<<("Item Not Found");
                        getch();
                        }
         }

//	REMOVE Item 
     // remove is a bit different first all the data except the Item to be deleted is saved in an other file called delete...
     // then the original file is washed and all the data is copied back again
      
  	void Item::remove()
   	{
      //clrscr();
      char name1[10];
      int code;
      int option;
      cout<<"\n(1)Delete By Name\n(2)Delete By Code";
            cin>>option;
           	if(option==1)
            	{
               	cout<<"\nEnter Item name  ";
                  gets(name1);
                  code=0;
               }
            else
            	{
               	cout<<"\nEnter Code of Item To Search  ";
                  cin>>code;
                  strcpy(name1,"null");
               }
      ifstream file( "TIS.txt" ,ios::in );
      ofstream temp( "delete.txt", ios::trunc);
             if( !file ||!temp)
             	{
                  cout<<"Could Not Open File";
                  getch();
                  exit(1);
               }
            file.seekg(0);
            temp.seekp(0);
          Item p1;
          file.read(reinterpret_cast<char *> (&p1),sizeof(Item));
     while(  !file.eof() )
            {
            	if( (strcmp(name1,p1.Item_name)==0)  || (code==p1.Item_code))
                  		{
                         file.read(reinterpret_cast<char *> (&p1),sizeof(Item));
                         }
               else
                   {
                     temp.write(reinterpret_cast<char *>(&p1),sizeof(Item));
               		file.read(reinterpret_cast<char *> (&p1),	sizeof(Item));
                    }
             }
         file.close();
         temp.close();
         ifstream temp1("delete.txt",ios::in);
         ofstream file1("TIS.txt", ios::trunc);
        temp1.seekg(0);
        file1.seekp(0);
        temp1.read( reinterpret_cast<char *> (&p1),sizeof(Item) );
        while( !temp1.eof() )
      	{
            file1.write( reinterpret_cast<char *> (&p1),sizeof(Item) );
            temp1.read( reinterpret_cast<char *> (&p1),sizeof(Item) );
           }

         temp1.close();
         file1.close();
      }

//	MAIN FUNCTION
 void main()
 			{
         Item m;
         int choice;
            while(1)
            	{
            		//clrscr();
                    cout<<"\n\tThe Inventory  System (TIS)";
       		cout<<"\n\n(1)Add Item\n\n(2)Show All Data"
            		<<"\n\n(3)Search Item\n\n(4)Remove Item\n\n(5)Exit TIS";
                 cout<<"\n\nEnter Choice ";
                 cin>>choice;
                 switch(choice)
                 	{
                   case 1:
                     m.add();
                     break;
                   case 2:
                   	m.showab();
                     break;
                   case 3:
                   	m.search();
                     break;
                   case 4:
                     m.remove();
                     break;
                   case 5:
                    {
					   exit(1);
                    }
           }
          }
         }