diff --git a/图书管理.c b/图书管理.c
index 9cab977..a60a2bf 100644
--- a/图书管理.c
+++ b/图书管理.c
@@ -101,23 +101,128 @@ Book* AddBook(Book* book1)
  //旧书处理
 Book* DealoldBook(Book* book1)
 {
-	
+	Book* book = book1;
+	Book* prev = book1;
+	printf("输入要处理旧书的编号:");
+	int id;
+	scanf("%d", &id);
+	getchar();
+	while (book != NULL)
+	{
+ 
+		if (id == book->iNum)
+		{
+			if (book1 == book)
+			{
+				book = book->next;
+				free(prev);
+				return book;
+			}
+			prev->next = book->next;
+			free(book);                     // free():释放资源
+			printf("已将旧书处理掉!\n");
+			printf("按任意键返回\n");
+			getchar();
+			return book1;
+		}
+		prev = book;
+		book = book->next;
+	}
+	printf("没有找到该图书\n");
+	printf("按任意键返回\n");
+	getchar();
+	return book1;
 }
+
 //根据书名检索书刊信息
 void foundBook(Book* book1)
 {
-	
+	Book* book = book1;
+	printf("输入要查找的书的id:");
+	int id;
+	scanf("%d", &id);
+	getchar();
+	while (book != NULL)
+	{
+		if (id == book->iNum)
+		{
+			printf("该书的信息如下:\n");
+			printf("%d\t%s\t%s\t%s\t%d\n", book->iNum, book->acName, book->acAuthor, book->acPress, book->iAmount);
+			printf("按任意键返回\n");
+			getchar();
+			return;
+		}
+		book = book->next;
+	}
+	printf("没有找到该书!\n");
+	printf("按任意键返回\n");
+	getchar();
+	return;
+
+
 }
 //查询读者的借阅信息
 void foundReader_Info(Reader* reader1)
 {
-	
+	Reader* reader = reader1; //备份
+	printf("输入读者的id:");
+	int id;
+	scanf("%d", &id);
+	getchar();
+	while (reader)
+	{
+		if (id == reader->iNum)
+		{
+			printf("借阅的书的编号如下:\n");
+			for (int i = 0; i < reader->iMax; i++)  //根据读者可以借阅的数量作为循环终止条件
+			{
+				if (reader->aiBookId[i] != 0)       //数组里不为0，证明有一条记录，因为：数组初始化为0，并且书的编号不可能为0
+				{
+					printf("%d\n", reader->aiBookId[i]);
+				}
+			}
+			printf("按任意键返回\n");
+			getchar();
+			return;
+		}
+		reader = reader->next;
+	}
+	printf("没有该读者!\n");
+	printf("按任意键返回\n");
+	getchar();
+	return;
+
+
 }
 //查询读者信息
 void foundReaderInfo(Reader* reader1)
 {
-	
-}
+	Reader* reader = reader1;
+	printf("输入读者的id:");
+	int id;
+	scanf("%d", &id);
+	getchar();
+	while (reader)
+	{
+		if (id == reader->iNum)
+		{
+			printf("读者id:%d\n", reader->iNum);
+			printf("读者姓名:%s\n", reader->acName);
+			printf("读者性别:%s\n", reader->acSex);
+			printf("读者职位:%s\n", reader->position);
+			printf("读者已借阅书的数量:%d\n", reader->iAmount);
+			printf("按任意键返回\n");
+			getchar();
+			return;
+		}
+		reader = reader->next;
+	}
+	printf("没有找到该读者\n");
+	printf("按任意键返回\n");
+	getchar();
+	return;
+
+
 //读者借书
 Reader* LendBook(Reader* reader1, Book* book1)
 {