#include<stdio.h>
#include<string.h>
struct book{
	char name[30];
	char phone[30];
};
void add(){
	FILE *fp;
	char flag='1';
	struct book bk[700];
	int i=0,c;
	if((fp=fopen("cc","ab+"))==NULL)
	{
			printf("\nERROR oening customet file");
	}
	      printf("\n要添加幾條記錄(填整數)?");
	        scanf("%d",&c);
           
			for(i=0;i<c;i++)
			{
			printf("\n輸入姓名:");
			scanf("%s",bk[i].name);
			printf("\n輸入電話號碼:");
			scanf("%s",bk[i].phone);
			}
		for(i=0;i<c;i++)
		{
		fwrite(&bk[i],sizeof(struct book),1,fp);
		}
		fclose(fp);
}
void read(){
	FILE *fp;
	struct book bk;
	//char ch;
	if((fp=fopen("cc","rb"))==NULL){
			printf("\nERROR oening customet file");
		}
	printf("\n姓名:\t電話:");
	while((fread(&bk,sizeof(struct book),1,fp))==1){
	printf("\n%s\t%s\t",bk.name,bk.phone);}
	fclose(fp);
}
void search(){
	FILE *fp;
	struct book bk;
	int i,sf,s;
	char sear[100];
	//char *loc;
    if((fp=fopen("cc","r+w"))==NULL){
			printf("\nERROR oening customet file");
		}
cc:	
	printf("\n1姓名\n2電話\n你要按什么來找?");
    scanf("%d",&s);
	if(s==1)
	{
		printf("\n請輸入要查的姓名:");
        scanf("%s",&sear);
	}else if(s==2){
		printf("\n請輸入要查的電話:");
        scanf("%s",&sear);
	}
    printf("\n姓名:\t電話:");
	i=0;
	rewind(fp);
while((fread(&bk,sizeof(struct book),1,fp))==1)
{ 
  	if(s==1)
	{   //loc=strchr(bk.name,sear);
		//if(loc!=NULL)
		if(!strcmp(bk.name,sear))
		{
	      printf("\n%s\t%s\t",bk.name,bk.phone);
		  i++;
		}
	}
	if(s==2)
	{
		if(!strcmp(bk.phone,sear))
		{
	     printf("\n%s\t%s\t",bk.name,bk.phone);
	     i++;
		}
	}
}
	if(i==0){
		printf("\n對不起!沒有你要找的數據");
	}else{
			printf("\n系統共找到%d條數據.",i);
	}
	printf("繼續查找(1/0)?");
	scanf("%d",&sf);
	if(sf==1)
	goto cc;
	fclose(fp);
	}
void del()
{
FILE *fp;
	struct book bk[700];
	struct book bkt;
	int i,sf,s,ii=0,it,cv;
	char sear[100];
	//char *loc;
    if((fp=fopen("cc","rb"))==NULL){
			printf("\nERROR oening customet file");
		}
	while((fread(&bkt,sizeof(struct book),1,fp))==1)
	{
		strcpy(bk[ii].name,bkt.name);
        strcpy(bk[ii].phone,bkt.phone);
		ii++;
	}
	fclose(fp);
	it=ii;
cc:	
	printf("\n1姓名\n2電話\n你要查找那一條記錄來刪除?");
    scanf("%d",&s);
	if(s==1)
	{
		printf("\n請輸入要查的姓名:");
        scanf("%s",&sear);
	}else if(s==2){
		printf("\n請輸入要查的電話:");
        scanf("%s",&sear);
	}
    printf("\n姓名:\t電話:");
	i=0;
	ii=0;
	for(;ii<it;ii++)
{ 
  	if(s==1)
	{   //loc=strchr(bk.name,sear);
		//if(loc!=NULL)
		if(!strcmp(bk[ii].name,sear))
		{
	      printf("\n%s\t%s\t",bk[ii].name,bk[ii].phone);
		  i++;
		  printf("確定要刪除嗎(1/0)?");
		  scanf("%d",&cv);
		  for(;ii<it;ii++)
		  {
			  if(ii==it-1)
			  break;
	      strcpy(bk[ii].name,bk[ii+1].name);
		  strcpy(bk[ii].phone,bk[ii+1].phone);
		  }
		}
	}
	if(s==2)
	{
		if(!strcmp(bk[ii].phone,sear))
		{
	     printf("\n%s\t%s\t",bk[ii].name,bk[ii].phone);
		 i++;
		 printf("/n確定要刪除嗎(1/0)?");
		 scanf("%d",&cv);
		 if(cv==1)
		 for(;ii<it;ii++)
		  {
			  if(ii==it-1)
			  break;
	      strcpy(bk[ii].name,bk[ii+1].name);
		  strcpy(bk[ii].phone,bk[ii+1].phone);
		  }
		}
	}
}
	if(i==0){
		printf("\n對不起!沒有你要找的數據");
	}else
	{  if((fp=fopen("cc","wb"))==NULL)
	{
			printf("\nERROR oening customet file");
	} 
	for(ii=0;ii<it-1;ii++)
    fwrite(&bk[ii],sizeof(struct book),1,fp);
	 printf("\n該記錄已被刪除!.");
	 fclose(fp);
	}
	printf("繼續刪除(1/0)?");
	scanf("%d",&sf);
	if(sf==1)
	goto cc;		
}
void change()
{   FILE *fp;
	struct book bk[700];
	struct book bkt;
	int i,sf,s,ii=0,it;
	char sear[100];
	char temp[100];
	//char *loc;
    if((fp=fopen("cc","rb"))==NULL){
			printf("\nERROR oening customet file");
		}
	while((fread(&bkt,sizeof(struct book),1,fp))==1)
	{
		strcpy(bk[ii].name,bkt.name);
        strcpy(bk[ii].phone,bkt.phone);
		ii++;
	}
	fclose(fp);
	it=ii;
cc:	
	printf("\n1姓名\n2電話\n你要修改什么?");
    scanf("%d",&s);
	if(s==1)
	{
		printf("\n請輸入要查的姓名:");
        scanf("%s",&sear);
	}else if(s==2){
		printf("\n請輸入要查的電話:");
        scanf("%s",&sear);
	}
    printf("\n姓名:\t電話:");
	i=0;
	ii=0;
//while((fread(&bk,sizeof(struct book),1,fp))==1)
	for(;ii<it;ii++)
{ 
  	if(s==1)
	{   //loc=strchr(bk.name,sear);
		//if(loc!=NULL)
		if(!strcmp(bk[ii].name,sear))
		{
	      printf("\n%s\t%s\t",bk[ii].name,bk[ii].phone);
		  i++;
		  printf("\n請輸入修改后的姓名:");
		  scanf("%s",&temp);
		  strcpy(bk[ii].name,temp);
		}
	}
	if(s==2)
	{
		if(!strcmp(bk[ii].phone,sear))
		{
	     printf("\n%s\t%s\t",bk[ii].name,bk[ii].phone);
		 i++;
		 printf("\n請輸入修改后的電話號碼:");
		  scanf("%s",&temp);
		  strcpy(bk[ii].phone,temp);
		}
	}
}
	if(i==0){
		printf("\n對不起!沒有你要找的數據");
	}else
	{  if((fp=fopen("cc","wb"))==NULL)
	{
			printf("\nERROR oening customet file");
	} 
	for(ii=0;ii<it;ii++)
    fwrite(&bk[ii],sizeof(struct book),1,fp);
	 printf("\n修改完成!.");
	 fclose(fp);
	}
	printf("繼續修改(1/0)?");
	scanf("%d",&sf);
	if(sf==1)
	goto cc;
}
void main(){
	int ch;
	FILE *fp;
	if((fp=fopen("cc","ab+"))==NULL){
			printf("\nERROR oening customet file");
		}
	fclose(fp);
	do{
	printf("\n\n           \2\2\2\2\2\2\2\2\2\2\2\2\2\2電★話★查★詢★系★統\2\2\2\2\2\2\2\2\2\2\2\2\2\2\2\2\n");
	printf("\n1添加\n2讀取所有\n3查找\n4刪除\n5修改\n6退出\n進行那個操作(1,2,3,4,5,6)?");
    scanf("%d",&ch);
	if(ch==1)
	add();
	if(ch==2)
	read();
	if(ch==3)
	search();
	if(ch==4)
	del();
	if(ch==5)
	change();
	}while(ch!=6);
	
}