store adminsystem.cpp

超市管理系统源码 非常适合初学者下载参考学习

			   system("cls");
			   printf("\n在这输入你要修改的信息\n");
			   printf("\n输入修改后的货品编号:\n");
			   fflush(stdin);
			   scanf("%ld",&ptr1->num);
			   printf("\n输入修改后的货品名称:\n");
			   fflush(stdin);
			   gets(ptr1->name);
			   printf("\n输入修改后的货品数量:\n");
			   fflush(stdin);
			   scanf("%ld",&ptr1->count);
		   }
		   else
		   {
			  printf("你输入的货品编号不存在\n");
		   }

		}// choise == 1	
		if(choise == 2)
		{
	 	    printf("\n输入货品名称\n");
			fflush(stdin);
	        gets(name);//
    		while(ptr1!=NULL && strcmpi(ptr1->name,name)!=0)
			{
			   ptr1 = ptr1->next;
			}
		    if(ptr1!=NULL)
			{
			   printf("你将要修改的信息已经找到\n");
			   printf("货品编号: %ld\n货品名称: %s\n货品数量: %ld",ptr1->num,ptr1->name,ptr1->count);
			   Sleep(2000);
			   system("cls");
			   printf("\n在这输入你要修改的信息\n");
			   printf("\n输入修改后的货品编号:\n");
			   fflush(stdin);
			   scanf("%ld",&ptr1->num);
			   printf("\n输入修改后的货品名称:\n");
			   fflush(stdin);
			   gets(ptr1->name);
			   printf("\n输入修改后的货品数量:\n");
			   fflush(stdin);
			   scanf("%ld",&ptr1->count);
		   }
		   else
		   {
			  printf("你输入的货品名称不存在\n");
		   }
        }//choise == 2
		printf("是否继续修改(yes/no)\n");
		fflush(stdin);
		gets(key);
	}while(strcmpi(key,"yes") == 0);
	printf("\n注意保存\n");
    printf("\n按任意键返回\n");
	getch();
	return  head;
}
COM   *pass()
{

	char key[4];
	int  choise;
	int  select;
	long temp;
	head = openfile();
	fflush(stdin);
	if(head == NULL)
	{
		return NULL;
	}
	do{	
		system("cls");
		ptr1 = head;
		ptr2 = head->next;
		printf("1:按货品编号排序\n2:按货品数量排序\n3:按任意键不做任何操作\n");
		fflush(stdin);
		scanf("%d",&choise);
		if(choise!=1 && choise!=2)
		{
			break;
		}
		if(choise == 1)
		{
			system("cls");
			printf("1.按从小到大排序\n2.按从大到小排序\n");
			fflush(stdin);
			scanf("%d",&select);
			if(select == 1)
			{
				while(ptr1!=NULL)
				{
					while(ptr2!=NULL)
					{
						if(ptr1->num > ptr2->num)
						{
							temp      = ptr1->num;
							ptr1->num = ptr2->num;
							ptr2->num = temp;
						}
						ptr2=ptr2->next;
						
					}//while ptr2
					ptr1 = ptr1->next;
					
					if(ptr1->next == NULL)
					{
						break;
					}
					else
					ptr2 = ptr1->next;
				}//while ptr1

			}//按从小到大排序
			if(select == 2)
			{
				while(ptr1!=NULL)
				{
					while(ptr2!=NULL)
					{
						if(ptr1->num < ptr2->num)
						{
							temp      = ptr1->num;
							ptr1->num = ptr2->num;
							ptr2->num = temp;
						}
						ptr2=ptr2->next;
						
					}//while ptr2
					ptr1 = ptr1->next;
					if(ptr1->next == NULL)
					{
						break;	
					}
					else
					ptr2 = ptr1->next;
				}// while prt1				
			}//按从大到小排序
			printf("排序操作完成!\n");
		}// choise ==1
		if(choise == 2)
		{
			system("cls");
			printf("1.按从小到大排序\n2.按从大到小排序\n");
			fflush(stdin);
			scanf("%d",&select);
			if(select == 1)
			{
				while(ptr1!=NULL)
				{
					while(ptr2!=NULL)
					{
						if(ptr1->count > ptr2->count)
						{
							temp        = ptr1->count;
							ptr1->count = ptr2->count;
							ptr2->count = temp;
						}
						ptr2=ptr2->next;
						
					}//while ptr2
					ptr1 = ptr1->next;
					if(ptr1->next==NULL)
					{
						break;
					}
					else
						ptr2 = ptr1->next;
				}//while  ptr1
			}//按从小到大排序

			if(select == 2)
			{
				while(ptr1!=NULL)
				{
					while(ptr2!=NULL)
					{
						if(ptr1->count < ptr2->count)
						{
							temp        = ptr1->count;
							ptr1->count = ptr2->count;
							ptr2->count = temp;
						}
						ptr2=ptr2->next;
						
					}//while ptr2
					ptr1 = ptr1->next;
					if(ptr1->next == NULL)
					{
						break;						
					}
					else
						ptr2 = ptr1->next;
				}// while prt1				
			}//从大到小排序
			printf("排序操作完成!\n");			
		}//choise == 2
		printf("\n是否继续排序!(yes/no)\n");
		fflush(stdin);
		gets(key);
	}while(!strcmpi(key,"yes"));
	printf("\n注意保存\n");
    printf("\n按任意键返回\n");
	getch();
	return  head;
}
void  save(COM *head)
{
	system("cls");
	fflush(stdin);
    printf("\ninput filename1\n");
	fflush(stdin);
	gets(filename1);
	if((fp=fopen(strcat(filename1,filename2),"wb")) == NULL)
	{
		printf("cannot file!\n");
		return;
	}
	ptr1=head;
	fflush(stdin);
	rewind(fp);
	while(ptr1!=NULL)
	{
		if(!fwrite(ptr1,LEN,1,fp))
		{
			printf("input to file false!\n");
			return ;
		}
		ptr1=ptr1->next;
	}
	fclose(fp);
    printf("save ok!\n");
    printf("按任意键返回\n");
	getch();	
}
void  printf_perf()
{
	system("cls");
	fflush(stdin);	
	head=openfile();
	int i=1;
	if(head == NULL)
	{
		return;
	}
	fflush(stdin);
	ptr2 = head; 
	while(ptr2!=NULL)
	{
		printf("\nnum:%ld\tname: %s\tcount: %ld\n",ptr2->num,ptr2->name,ptr2->count);
        ptr2=ptr2->next;
		i++;
		if(i/15 == 1)
		{
			printf("input any key to look next page\n");
			getch();
			system("cls");
			i = 1;
		}
	}
    printf("按任意键返回\n");
	getch();	
}
void  search()
{
	system("cls");
	fflush(stdin);
	int choise;
	long num;
	char name[20];
	head = openfile();
    ptr1 = head;
	printf("input you can search goods's num  or  name!\n");
	printf("1.input num\n2.input name\n3.press any key to return");	
	printf("\ninput you choise!\n");
	fflush(stdin);
	scanf("%d",&choise);
	if(choise == 1)
	{
		printf("input num!\n");
		fflush(stdin);
		scanf("%ld",&num);
		while(ptr1->num!=num && ptr1->next!=NULL)
		{
			//	ptr2 = ptr1;
			ptr1 = ptr1->next;
			//	n = n+1;
		}
		if(ptr1!=NULL)
		{
			printf("find data!\n");
			Sleep(1000);
			system("cls");
			printf(PRINT);
		}
		else
		{
			printf("in database can not find you input data\n");
		}
	}
	if(choise == 2)
	{
		printf("input name\n");
		fflush(stdin);
		gets(name);
		while(strcmpi(ptr1->name,name)!=0 && ptr1->next!=NULL)
		{
			//	ptr2 = ptr1;
			ptr1 = ptr1->next;
			//	n = n+1;
		}
		if(ptr1!=NULL)
		{
           	printf("find data!\n");
			Sleep(1000);
			system("cls");
			printf(PRINT);    
		}
		else
		{
			printf("in database can not find you input name!\n");
		}
		
	}//
    printf("按任意键返回\n");
	getch();
	
}
COM   *openfile()
{
	system("cls");
	int n = 1; 
    printf("input filename1:\n");
	fflush(stdin);
	gets(filename1);
	if((fp=fopen(strcat(filename1,filename2),"rb")) == NULL)
	{
		printf("can not open file!\n");
		getch();
		return(NULL);
	}
	
	if(!(ptr2=ptr1=(COM *)malloc(LEN)))
	{
		printf("memory assign false!\n");
		getch();
		return(NULL);
	}	
	if(!fread(ptr1,LEN,1,fp))
	{
		printf("can not read in file\n");
		getch();
		return(NULL);
	}
	if(ptr1->next == NULL)
	{
		head=ptr1;
	}
	else
	{
		do{
			if(n==1)
			{
				head=ptr1;
			}
			else
			{
				ptr2->next=ptr1;
			}
			n = n+1;
			ptr2=ptr1;
			if(!(ptr1=(COM *)malloc(LEN)) )
			{
				printf("memory assign false!\n");
				getch();
				return(NULL);
			}	
			if(!fread(ptr1,LEN,1,fp))
			{
				printf("can not read in file\n");
				getch();
				return(NULL);
			}		  		 
		}while(ptr1->next!=NULL);
		ptr2->next=ptr1;
	}
	fclose(fp);
	//   printf("按任意键返回\n");	
	//	getch();
	return head;
}