ninth commit

删除函数.c

@@ -1,51 +0,0 @@
-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");
-}
-

排序函数.c

@@ -0,0 +1,42 @@
+void sort()
+{
+	FILE *fp;
+	struct addritem t;
+	int i,j,count=0;
+	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;
+	}
+	for(i=0;i<count-1;i++)
+	for(j=i+1;j<count;j++)
+	 if(strcmp(addrinfo[i].name,addrinfo[j].name)>0)
+	 {
+	 	t=addrinfo[i];
+	 	addrinfo[i]=addrinfo[j];
+	 	addrinfo[j]=t;
+	 }
+	 if((fp=fopen("data.txt","w"))==NULL)
+	{
+		printf("can not open\n");
+		return;
+	}
+	for(i=0;i<count;i++)
+	if(fwrite(&addrinfo[i],LEN,1,fp)!=1)
+	{
+		printf("can not save!\n");
+		getch();
+	}
+	fclose(fp);
+	printf("successfully!\n");
+}
+