diff --git a/data.h b/data.h
index 5f19df2..0955567 100644
--- a/data.h
+++ b/data.h
@@ -28,26 +28,32 @@ void DoBoorowBook(); // 借用图书
 void repaid_book(void)  // 还书
     {
         printf("还书\n");
+        DoRepaidBook();
     }
 void boorow_book(void)  // 借书
     {
         printf("借书\n");
+        DoBoorowBook();
     }
 void query_book(void)   // 查询
     {
         printf("查书\n");
+        DoFindBook();
     }
 void print_book(void)   // 打印
     {
         printf("打印\n");
+        DoPrintBook();
     }   
 void add_book(void)     // 添加
     {
         puts("添加");
+        DoAddBook(); 
     }
 void delete_book(void)  // 删除
     {
         puts("删除");
+        DoDeleteBook();
     }
 
 
diff --git a/title.cpp b/title.cpp
index f501052..0e3f6d7 100644
--- a/title.cpp
+++ b/title.cpp
@@ -41,27 +41,21 @@
         switch(c) {
         case CMD_REPAID:// 还书
             {repaid_book();
-            DoRepaidBook();
             break;}
         case CMD_BOOROW:// 借书
             {boorow_book();
-            DoBoorowBook();
             break;}
         case CMD_PRINT:// 打印所有书籍
             {print_book();
-            DoPrintBook();
             break;}
         case CMD_QUERY:// 查找书籍
             {query_book();
-            DoFindBook();
             break;}
         case CMD_INSERT:// 添加书籍
             {add_book();
-            DoAddBook();
             break;}
         case CMD_DELETE:// 删除书籍
             {delete_book();
-            DoDeleteBook();
             break;}
         case CMD_QUIT:// 退出程序
             {if (confirm("确定要退出吗？")) quit(); // 仅在确认后退出