购物清单及闹表

记录第一次系统地写下一个实用代码

/*1.插入一条记录，包括需要采购物品的名称，采购的数量，单价，采购地点到商场的距离，用一个结构体实现。
2.对所有需要采购的物品按距离进行的排序。
3.对所有需要采购的物品按名称字典序进行的排序。
4.删除一条记录，按时间删除和按物品名删除。
5.查找对应时间需要采购的物品。
6.按物品名称查找相关信息（扩展需求：模糊搜索,比如名称为abc，输入a或输入b，也可显示该记录）。
7.修改某个物品需要采购的数量，单价。
8.到点提醒，到确切的时间，提醒老刘去采购相应的物品（获取系统时间即可）。*/

#include 
#include 
#include  
#include 
#include 
#include 
#define output "||||name:%s||number:%d||price:%.2lfyuan||place:%s||distance:%.2lfkm||time:%02do'clock||%02dminutes||%02dseconds||||\n"
#define DATA p->data.name,p->data.num,p->data.price,p->data.place,p->data.distance,p->data.hours,p->data.minutes,p->data.seconds
//定义购买清单结构体 
struct item{
	char name[30];
	int num;
	double price;
	char place[30];
	double distance;
	int hours;
	int minutes;
	int seconds;
};
//定义链表 
typedef struct Node{
	struct item data;/*存放数据*/ 
	struct Node* next;/*指针*/ 
}node,*head;
head l;
int ch; 
/*菜单、进入界面
	1.增添一条购物清单 
	2.删除一条购物清单
	3.更改一条购物清单
	4.输入时间来找到购物物品
	5.输入物品名称来找到购物清单记录
	6.按照距离排序
	7.按照字典序排序
	8.闹钟提醒服务*/ 
void list(){
	printf("Welcome to the shopping listing！\n");
	printf("Please enter a number as follows if you want to use the program:\n");
	printf("1.Add a shopping record.\n");
	printf("2.Delete a shopping record.\n");
	printf("3.Modify a shopping record.\n");
	printf("4.Enter the time to find the item.\n");
	printf("5.Enter the name of the item to find the shopping records.\n");
	printf("6.Sort by distance.\n");
	printf("7.Sort in alphabetical order\n");
	printf("I have alarm service~\n");
	printf("Hope you enjoy using the programe\(^o^)/~\n");
	printf("Please enter a number:\n");
}
//增添一条购物清单的函数
void add_list(void){
	system("CLS");
	char na[30],pl[30];
	int nu,ho,mi,se;
	double pr,di;
	node *p,*last;
	printf("Enter the name of item, please.\n");
	scanf("%s",na);
	while((ch=getchar())!=EOF&&ch !='\n');
	printf("Enter the number of item, please.\n");
	scanf("%d",&nu);
	while((ch=getchar())!=EOF&&ch !='\n');
	printf("Enter the price of item, please.\n");
	scanf("%lf",&pr);
	while((ch=getchar())!=EOF&&ch !='\n');
	printf("Enter the place to buy the item, please.\n");
	scanf("%s",pl);
	while((ch=getchar())!=EOF&&ch !='\n');
	printf("Enter the distance to the place(km), please.\n");
	scanf("%lf",&di);
	while((ch=getchar())!=EOF&&ch !='\n');
	printf("Enter the time to buy the item, please(hours minutes seconds)\n");
	scanf("%d %d %d",&ho,&mi,&se);
	while((ch=getchar())!=EOF&&ch !='\n');
	p=(node*)malloc(sizeof(node));
	if(!p){
		printf("\n allocate memory failure\n");
		return;
	}
	p->data.num=nu;	
	p->data.price=pr;	
	p->data.distance=di; 	 
	p->next=NULL;
	p->data.hours=ho;
	p->data.minutes=mi;
	p->data.seconds=se;
	strcpy(p->data.name,na);  
	strcpy(p->data.place,pl);
	last=l;
	if(last){
		while(last->next) last=last->next;
		last->next=p;
	}
	else l=p;
	printf("add success!\n");
	printf(output,DATA);
	printf("\n");
	list();
	return;
}
//找符合时间条件的清单 
node* sear_t(int ho,int mi,int se){
	node* s;
	s=l->next;
	while(s){
		if(s->data.hours==ho&&s->data.minutes==mi&&s->data.seconds==se){
			return s;
		}
		s=s->next;
	}
	return 0;
}
//找符合名字条件的清单 
node* sear_n(char* ar){
	node* s;
	s=l->next;
	while(s){
		if(strcmp(s->data.name,ar)==0){
			return s;
		}
		s=s->next;
	}
	return 0;
}
//删除一条购物清单的函数
void del_list(void){
	system("CLS");
	node *p,*h,*s;
	int ho,mi,se;
	int c,i;
	char ar[30];
	if(!((l)->next)){
		printf("You hadn't creat a list yet!\n");
		printf("\n");
		list();
		return;
	}
	printf("If you want to delete a record by time, enter 1\n");
	printf("If you want to delete a record by name, enter 0\n");
	scanf("%d",&i);
	while((ch=getchar())!=EOF&&ch !='\n');
	if(i){
		printf("Enter the time, please.(hours minutes seconds)\n");
		scanf("%d %d %d",&ho,&mi,&se);
		while((ch=getchar())!=EOF&&ch !='\n');
		p=sear_t(ho,mi,se);
		if(!p){
			printf("The record doesn't exist.\n");
			printf("\n");
			list();
			return;
		}
		printf(output,DATA);
	}
	else{
		printf("Enter the name, please.\n");
		scanf("%s",ar);
		while((ch=getchar())!=EOF&&ch !='\n');
		p=sear_n(ar);
		if(!p){
			printf("The record doesn't exist.\n");
			printf("\n");
			list();
			return;
		}
		printf(output,DATA);
	}
	printf("Are you sure to delete this record? Please enter(1/0),1=yes,0=no.\n");
	scanf("%d",&c);
	while((ch=getchar())!=EOF&&ch !='\n');
	if(c==1){
		h=l;
		while(h->next!=p){
		h=h->next;}
		if(h){
			h->next = p->next;
			free(p);
		}
		printf("delete success!\n");
	}
	printf("\n");
	list();
	return;
}
//修改一条购物清单的函数 
void mod_list(void){
	system("CLS");
	int n,c;
	double pr;
	char ar[30];
	node *p,*h;
	h=l;
	printf("Enter the name of the item to search the record, please.\n");
	scanf("%s",ar);
	while((ch=getchar())!=EOF&&ch !='\n');
	p=sear_n(ar);
	if(!p){
		printf("The record doesn't exist.\n");
		printf("\n");
		list();
		return;
	}
	printf(output,DATA);
	printf("Are you sure to modify the record?(1/0)1=yes,0=no.\n");
	scanf("%d",&c);
	while((ch=getchar())!=EOF&&ch !='\n');
	if(c==1) {
		printf("Enter the number and the price of the item you want to modify, please.(number price)\n");
		scanf("%d %lf",&n,&pr);
		while((ch=getchar())!=EOF&&ch !='\n');
		p->data.num=n;
		p->data.price=pr;
		printf(output,DATA);
		printf("modify success of %s!\n",ar);
	}
	printf("\n");
	list();
	return;
}
//按照输入时间查找需购物品的函数
void t_find(void){
	system("CLS");
	int ho,mi,se;
	node *p;
	printf("Enter the time, please.(hours minutes seconds)\n");
	scanf("%d %d %d",&ho,&mi,&se);
	while((ch=getchar())!=EOF&&ch !='\n');
	p=sear_t(ho,mi,se);
	if(!p){
		printf("The record doesn't exsit!\n");
		printf("\n");
		list();
		return;
	}
	printf("You need to buy:%s in%d:%d:%d.\n",p->data.name,ho,mi,se);
	printf("Search success!\n");
	printf("\n");
	list();
	return;
} 
//物品名模糊搜索
node* mhsear_n(char* ar){
	node* s;
	s=l->next;
	while(s){
		if(strstr(s->data.name,ar)!=0){
			return s;
		}
		s=s->next;
	}
	return 0;
} 
//按照输入物品名称查找那一条购买清单的函数  
void n_find(void){
	system("CLS");
	char ar[30];
	node *p;
	printf("Enter the name of the item, please.\n");
	scanf("%s",ar);
	while((ch=getchar())!=EOF&&ch !='\n');
	p=mhsear_n(ar);
	if(!p){
		printf("Search failure!\n");
		printf("\n");
		list();
		return;
	}
	printf(output,DATA);
	printf("Search success!\n");
	printf("\n");
	list();
	return;
} 
//按照距离将购物清单进行排序的函数 
void d_sort(void){
	system("CLS");
	node *p,*h,*c,*f;
	double a,b;
	int n=0,i,j;
	f=l;
	p=f->next;
	if(!p)	printf("The list is empty!\n");
	else if(p->next==NULL) printf("You only have one record!\n");
	else{
		while(p){
			n++;
			p=p->next;
		}
		for(i=0;inext;
			for(j=0;jnext;
				c=p;
				a=c->data.distance;
				b=h->data.distance;
				if(a>=b){
					struct item temp=c->data;
					c->data=h->data;
					h->data=temp;
				}
				p=p->next;
			}
		}
		p=f->next;
		for(i=0;inext;
		}
		("Sort success!\n");
	}
	printf("\n");
	list();
	return;
} 
//按照物品名字典序将购物清单排序的函数
void  a_sort(void){
	system("CLS");
	node *p,*h,*c,*f;
	int n=0,i,j;
	f=l;
	p=f->next;
	if(p==NULL)	printf("The list is empty!\n");
	else if(p->next==NULL) printf("You only have one record!\n");
	else{
		while(p){
			n++;
			p=p->next;
		}
		for(i=0;inext;
			for(j=0;jnext;
				c=p;
				if(strcmp(c->data.name,h->data.name)>=0){
					struct item temp=c->data;
					c->data=h->data;
					h->data=temp;
				}
				p=p->next;
			}
		}
		p=f->next;
		for(i=0;inext;
		}
		("Sort success!\n");
	}
	printf("\n");
	list();
	return;
}
//到点提醒服务
unsigned __stdcall alarm_(void*){
	node *p;
	int hou,min,sec;
	while(1){
		hou=time(NULL)%(24*3600)/3600+8;
		if(hou>=24){
			hou=hou-24;
		}
		min=time(NULL)%3600/60;
		sec=time(NULL)%60;
		p=sear_t(hou,min,sec);
		if(p){
			printf("It's time! You need to buy:\n");
			printf(output,DATA);
		}
		Sleep(1000);
	}
	
}
int main(){
	list();
	int n;
	HANDLE HH;
	l=(node*)malloc(sizeof(node));
	l->next=NULL;
	unsigned id;
	HH=(HANDLE)_beginthreadex(NULL,0,alarm_,0,NULL,&id);
	while(scanf("%d",&n)!=EOF){
		if(n==1) 	add_list();
		else if(n==2)	del_list();
		else if(n==3)	mod_list();
		else if(n==4)	t_find();
		else if(n==5)	n_find();
		else if(n==6)	d_sort();
		else if(n==7)	a_sort();
	}
	return 0;
}