diff --git a/README.md b/README.md
index 924de88..f01c9dd 100644
--- a/README.md
+++ b/README.md
@@ -60,3 +60,52 @@
 确定要退出吗？(Y/N): n
 程序退出
 ```
+### C4：打印书籍
+选择菜单命令：4  提示打印书籍并打印图书信息，若没有书，则输出Total: 0 books，若有书，则输出书籍信息
+```
+请选择：4
+
+Print All Books
+
+Total: 0 books
+```
+```
+请选择：4
+
+Print All Books
+
+Book
+
+**************** id: 6 ****************
+**** title: 《 6 》****
+************** Number: 6 **************
+
+Total: 1 books
+```
+### C6：删除书籍
+选择菜单命令：6  提示删除书籍、你想要删除哪本书籍？和请输入图书编号，则输入图书编号。若找到输出书籍的信息并提示Delele，若没找到则提示Not Found.
+```
+请选择：6
+
+Delete Book
+
+Which book you wanna delelet?
+Enter book ID: 4
+Book 
+
+**************** id: 4 ****************
+**** title: 《 4 》****
+************** Number: 4 **************
+
+************************
+Deleted
+```
+```
+请选择：6
+
+Delete Book
+
+Which book you wanna delelet?
+Enter book ID: 5
+Not found
+```
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