eighth commit

修改函数.c

@@ -1,56 +0,0 @@
-void update()
-{
-	FILE *fp;
-	int i,j,count=0;
-	char name[15];
-	if((fp=fopen("data.txt","r+"))==NULL)
-	{
-		printf("can not open");
-		return;
-	}
-	while(!feof(fp)){
-		printf("%d",count);
-		if(fread(&addrinfo[count],LEN,1,fp)==1)
-		count++;
-	}
-	if(count==0)
-	{
-		printf("no record\n");
-		fclose(fp);
-		return;
-	}
-	display();
-	printf("please input the name of the contact which you want to update\n");
-	printf("update name:");
-	scanf("%s",&name);
-	for(i=0;i<count;i++)
-	{	if(strcmp(name,addrinfo[i].name)==0)
-		{printf("find the contact!you can update!\n");
-		printf("name:");
-		scanf("%s",&addrinfo[i].name);
-		printf("occuption:");
-		scanf("%s",&addrinfo[i].occu);
-		printf("telephone：");
-		scanf("%s",&addrinfo[i].tel);
-		printf("email:");
-		scanf("%s",&addrinfo[i].email);
-		printf("address:");
-		scanf("%s",&addrinfo[i].address); 
-		printf("update successful");//信息在数组中进行修改，需将信息写回磁盘中
-		if((fp=fopen("data.txt","wb"))==NULL) 
-		{
-			printf("can not open\n");
-			return;
-		}
-		for(j=0;j<count;j++)
-		if(fwrite(&addrinfo[j],LEN,1,fp)!=1)
-			{
-			printf("can not save!");
-			getch();
-			}
-			fclose(fp);
-			return;
-		} 
-	}printf("not find contact");//若未找到联系人信息 
-}
-

删除函数.c

@@ -0,0 +1,51 @@
+void  del()
+{
+	FILE *fp;
+	int i,j,count=0;
+	char ch[2];
+	char name[15];
+	if((fp=fopen("data.txt","r+"))==NULL)
+	{
+		printf("can not open\n");
+		return;
+	}
+	while(!feof(fp))
+		if(fread(&addrinfo[count],LEN,1,fp)==1)
+		count++;
+		fclose(fp);
+	if(count==0)
+	{
+		printf("no record!\n");
+		return;
+	}
+	display();
+	printf("please input the name");
+	scanf("%s",&name);
+	for(i=0;i<count;i++)
+	{
+		if(strcmp(name,addrinfo[i].name)==0)
+		{
+			printf("find the contact,del?(y\n)");
+			scanf("%s",ch);
+			if(strcmp(ch,"Y")||strcmp(ch,"y")==0)
+			for(j=i;j<count;j++)//i为所需删的联系人，需将i后的联系人都前移一个位置 
+			addrinfo[j]=addrinfo[j+1];
+			count--;
+			if((fp=fopen("data.txt","w"))==NULL)
+			{
+				printf("can not open");
+				return;
+			}for(j=0;j<count;j++)
+			if(fwrite(&addrinfo[j],LEN,1,fp)!=1)
+			{
+				printf("can not save!\n");
+				getch();
+			}
+			fclose(fp);
+			printf("del successfully!\n");
+			return;
+		}
+	} 
+	printf("not find the contact");
+}
+