diff --git a/README.md b/README.md
index 06a566e..9c43c31 100644
--- a/README.md
+++ b/README.md
@@ -117,8 +117,30 @@ void ShowMainMenu()
 1）函数原形: void foundBook(Book* book);
 2) 功能：接受一个形参:图书链表的地址，遍历该链表，用书的编号进行匹配，找到该图书后显示该图书，否则返回
 ```
-
-
+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;
+}
 
 ```
 
@@ -127,8 +149,37 @@ void ShowMainMenu()
 1）函数原形: void foundReader_Info(Reader* reader);
 2) 功能： 接受一个形参:读者链表的地址，遍历该链表，用读者的编号进行匹配，找到该读者显示该读者的信息，否则返回
 ```
+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;
 
-
+}
 
 ```
 
@@ -137,6 +188,34 @@ void ShowMainMenu()
 1）函数原形: void foundReaderInfo(Reader* reader);
 2）功能: 接受一个形参:读者链表的地址，遍历该链表，用读者的编号进行匹配，找到该读者显示该读者的借阅信息，否则返回
 ```
+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;
+}
+
 
 
 
@@ -147,6 +226,131 @@ void ShowMainMenu()
 1)函数原形: Reader* LendBook(Reader* reader, Book* book);
 2)功能:接受两个形参：读者链表地址和图书链表地址，用读者的编号进行匹配，找到该读者后，用图书的编号进行匹配，进行借书，否则返回
 ```
+Reader* LendBook(Reader* reader1, Book* book1)
+{
+	Reader* reader = reader1;
+	Book* book = book1;
+ 
+	Reader* prev = reader1;
+	Reader* tmpp = reader1;
+ 
+	printf("输入读者id:");
+	int id;
+	scanf("%d", &id);
+	getchar();
+ 
+	if (reader == NULL)
+	{
+		Reader* tmp = (Reader*)malloc(sizeof(Reader));
+		tmp->next = NULL;
+		tmp->iAmount = 0;
+		tmp->iNum = id;
+ 
+		printf("输入读者名字:");
+		scanf("%s", &tmp->acName);
+		getchar();
+		printf("输入读者性别:");
+		scanf("%s", &tmp->acSex);
+		getchar();
+		printf("输入读者职位:<student\tor\tteacher>");
+		scanf("%s", &tmp->position);
+		getchar();
+		if (strcmp(tmp->position, "student") == 0)
+		{
+			tmp->iMax = 20;
+			tmp->day = 30;
+		}
+		else {
+			tmp->iMax = 40;
+			tmp->day = 60;
+		}
+		for (int i = 0; i < tmp->iMax; i++)
+		{
+			tmp->aiBookId[i] = 0;
+		}
+		printf("输入要借的书的编号:");
+		int id_book;
+		scanf("%d", &id_book);
+		getchar();
+		while (book != NULL)
+		{
+			if (id_book == book->iNum)
+			{
+				if (book->iAmount <= 1)
+				{
+					printf("借阅失败，该图书库存不足.\n");
+					printf("按任意键返回\n");
+					getchar();
+					return NULL;
+				}
+				if ((tmp->iAmount) + 1 > tmp->iMax)
+				{
+					printf("借阅失败,该读者借阅图书数量已达上线.\n");
+					printf("按任意键返回\n");
+					getchar();
+					return NULL;
+				}
+				book->iAmount--;
+				tmp->aiBookId[tmp->iAmount] = id_book;
+				tmp->iAmount;
+				reader = tmp;
+				printf("借阅成功!\n");
+				printf("按任意键返回\n");
+				getchar();
+				return reader;
+			}
+			book = book->next;
+		}
+		printf("没有找到该书!\n");
+		printf("按任意键返回\n");
+		getchar();
+		return reader1;
+	}
+	if (reader != NULL)
+	{
+		while (reader != NULL)
+		{
+			if (id == reader->iNum)
+			{
+				printf("图使馆当前的书籍册:\n");
+				ShowLibBook(book);
+				printf("输入要借的书的编号:");
+				int id_book;
+				scanf("%d", &id_book);
+				getchar();
+				while (book != NULL)
+				{
+					if (id_book == book->iNum)
+					{
+						if (book->iAmount <= 1)
+						{
+							printf("借阅失败，该图书库存不足.\n");
+							printf("按任意键返回\n");
+							getchar();
+							return reader1;
+						}
+						if (tmpp->iAmount + 1 > tmpp->iMax)
+						{
+							printf("借阅失败,该读者借阅图书数量已达上线.\n");
+							printf("按任意键返回\n");
+							getchar();
+							return reader1;
+						}
+						reader->iAmount++;
+						reader->aiBookId[tmpp->iAmount] = id_book;
+						return reader1;
+					}
+					book = book->next;
+				}
+				printf("没有找到该书!\n");
+				printf("按任意键返回\n");
+			}
+			reader = reader->next;
+		}
+	}
+ 
+ 
+}