diff --git a/README.md b/README.md
index ed9f5c2..bc3f5c0 100644
--- a/README.md
+++ b/README.md
@@ -67,14 +67,12 @@
 请选择：1
 
 Find Book
-
 Book data empty
 ```
 ```
 请选择：1
 
 Find Book
-
 Enter book ID: 1
 Not found
 ```
@@ -82,7 +80,6 @@ Not found
 请选择：1
 
 Find Book
-
 Enter book ID: 1
 Found
 ************
@@ -98,16 +95,13 @@ Book
 请选择：2
 
 Boorow Book
-
 Book data empty
 ```
 ```
 请选择：2
 
 Boorow Book
-
-Which book you wanna boorow ?
-2
+Enter book ID:2
 
 NOT FOUND THIS BOOK
 ```
@@ -115,9 +109,7 @@ NOT FOUND THIS BOOK
 请选择：2
 
 Boorow Book
-
-Which book you wanna boorow ?
-1
+Enter book ID:1
 
 *********
 OK
@@ -129,19 +121,17 @@ OK
 请选择：3
 
 Repaid Book
-
-Which book you wanna repaid ?
-2
+Enter book ID:2
 
 
 Add Book
 
-ID    : 1
+ID    : 2
 TITLE : 1
 Number : 1
 Book 
 
-**************** id: 1 ****************
+**************** id: 2 ****************
 **** title: 《 1 》****
 ************** Number: 1 **************
 `````
@@ -151,9 +141,7 @@ Book
 请选择：3
 
 Repaid Book
-
-Which book you wanna repaid ? 
-1
+Enter book ID:1
 `````
 
 ### C4：打印书籍
@@ -208,8 +196,6 @@ Book
 请选择：6
 
 Delete Book
-
-Which book you wanna delelet?
 Enter book ID: 4
 Book 
 
@@ -219,13 +205,12 @@ Book
 
 ************************
 Deleted
+************************
 ```
 ```
 请选择：6
 
 Delete Book
-
-Which book you wanna delelet?
 Enter book ID: 5
 Not found
 ```
@@ -235,9 +220,7 @@ Not found
 请选择：7
 
 Revise Book
-
-Which book you wanna revise ?
-1
+Enter book ID : 1
 Original book number : 1
 Revised number :2
 **********************
@@ -249,9 +232,7 @@ Revise success
 请选择：7
 
 Revise Book
-
-Which book you wanna revise ?
-2
+Enter book ID : 2
 No such book
 ``````
 ### C8：排序图书
@@ -260,14 +241,12 @@ No such book
 请选择：8
 
 Sort Books
-
 Book data empty
 ```
 ```
 请选择：8
 
 Sort Books
-
 *****************************
 Sort success
 ```
@@ -329,7 +308,7 @@ Step 6: if 没找到 then 提示Not found
 ![find](Graph\DoFindBook.drawio.svg)
 ## DoDeleteBook
 ```
-Step 1: 提示删除图书和要删除那本书？
+Step 1: 提示删除图书
 Step 2: 输入图书编号
 Step 3: if 存在此图书 then 输出图上述信息 并提示 Deleted
 Step 4: if 不存在此图书 then 提示 Not found
@@ -344,9 +323,18 @@ Step 3: 显示总书籍个数
 ![print](Graph\DoPrintBook.drawio.svg)
 ## DoRepaidBook
 ```
-Step 1: 提示归还图书和哪本书是要还的
+Step 1: 提示归还图书
 Step 2: 输入图书编号
 Step 3: if 存在该书 then 图书数量变化 1
 Step 4: if 不存在该书 then 添加此图书
 ```
-![repaid](Graph\DoRepaidBook.drawio.svg)
\ No newline at end of file
+![repaid](Graph\DoRepaidBook.drawio.svg)
+## DoBoorowBook
+```
+Step 1: 提示借用图书
+Step 2: if 图书库为空 then 提示 Books data empty
+Step 3: 输入图书编号
+Step 4: if 此书存在 if 数量不小于0 then 进行程序并提示 OK 以表示完成 else 提示 Book empty
+Step 5: if 此书不存在 then 提示 NOT FOUND THIS BOOK
+```
+![boorow]()
\ No newline at end of file
diff --git a/code/data.h b/code/data.h
index 59329a7..cbd9d6e 100644
--- a/code/data.h
+++ b/code/data.h
@@ -49,7 +49,7 @@ void input(Book& b)
 // 打印一本书的信息
 void print(const Book& b)
 {
-    cout << "Book " << endl << endl
+    cout << endl << "Book " << endl
          <<"**************** id: " << b.id << " ****************" << endl
          << "**** title: 《 " << b.title << " 》****" << endl
          << "************** Number: " << b.number << " **************" << endl << endl;
@@ -84,43 +84,51 @@ bool bookempty()
 // 添加图书
 void DoAddBook()
 {
-    if (books.length == 256) cout << "Books full" << endl;
     cout << endl << "Add Book"<< endl<<endl;
+    if (books.length == 256) cout << "Books full" << endl;
+    else{
     Book book;
     input(book); //输入图书
     books.elem[books.length + 1] = book;
     books.length++;
     print(book);
     cout << "*******Added********" << endl;
+    }
 }
 
 // 查找图书
 void DoFindBook()
 {
-    cout << endl << "Find Book" << endl <<endl;
+    cout << endl << "Find Book" << endl;
     if (bookempty()) cout << "Book data empty"<< endl;
+    else {
     int id;
     cout << "Enter book ID: ";
     cin >> id;
 
     Book book;
     if (find(id) == 0)
-        cout << "Not found" << endl;
+        {
+            cout << "************" << endl;
+            cout << "Not found" << endl;
+            cout << "************" << endl;
+        }
     else
     {
         book = books.elem[find(id)];
+        cout << "************" << endl;
         cout << "Found" << endl;
         cout << "************" << endl;
         print(book);
     }
+    }
 }
 
 // 删除图书
 void DoDeleteBook()
 {
-    cout << endl << "Delete Book" << endl << endl;
+    cout << endl << "Delete Book" << endl;
     int id;
-    cout << "Which book you wanna delelet?"<<endl;
     cout << "Enter book ID: ";
     cin >> id;
     Book e;
@@ -137,6 +145,7 @@ void DoDeleteBook()
         --books.length;
         cout << "************************" << endl;
         cout << "Deleted" << endl;
+        cout << "************************" << endl;
     }
 }
 
@@ -144,26 +153,25 @@ void DoDeleteBook()
 void DoPrintBook()
 {
     cout << endl << "Print All Books" << endl <<endl;
-    int flag = 0;
+    int number = 0;
     for (int i = 0; i < books.length; i++)
     {
         Book e;
         e = books.elem[i + 1];
         print(e);
-        flag++;
+        number++;
     }
     cout << "Total: ";
-    cout << flag;
+    cout << number;
     cout << " books" << endl;
 }
 
 // 归还图书
 void DoRepaidBook()
 {
-    cout << endl << "Repaid Book" << endl<<endl;
+    cout << endl << "Repaid Book" << endl;
     int id;
-    cout << "Which book you wanna repaid ? " << endl;
-    cout << "Enter book ID :" << endl;
+    cout << "Enter book ID :";
     cin >> id;
     cout << endl;
     if (find(id)){
@@ -171,6 +179,7 @@ void DoRepaidBook()
         e = books.elem[find(id)];
         ++books.elem[find(id)].number;
     }else{
+        cout << "Add Book" << endl;
         DoAddBook();
     }
 }
@@ -178,13 +187,12 @@ void DoRepaidBook()
 // 借用图书
 void DoBoorowBook()
 {
-    cout << endl << "Boorow Book" << endl <<endl;
+    cout << endl << "Boorow Book" << endl ;
     int id;
-    if (bookempty()) cout << "Book data empty"<< endl;
-    cout << "Which book you wanna boorow ? " << endl;
-    cout << "Enter book ID :" << endl;
+    if (bookempty()) cout << "Books data empty"<< endl;
+    else{
+    cout << "Enter book ID :";
     cin >> id;
-    cout << endl;
     if (find(id)){
     if (books.elem[find(id)].number>0) {
         Book e;
@@ -193,25 +201,26 @@ void DoBoorowBook()
         --books.elem[find(id)].number;
     }else cout << "***************************"<< endl
     << "Book empty" << endl << "***************************" << endl;
-    }else cout<< "NOT FOUND THIS BOOK"<<endl;
+    }else cout<< "NOT FOUND THIS BOOK"<<endl;}
 }
 
 // 修改图书
 void DoReviseBook()
 {
-    cout <<endl<< "Revise Book" <<endl <<endl;
+    cout <<endl<< "Revise Book" <<endl ;
     int id;
-	printf( "Which book you wanna revise ?\n" );
+    cout << "Enter book ID :";
     cin >> id;
 
 	if ( find(id)!=0 ) {
-		printf ( "Original book number : %d\n", books.elem[id].number );
+		printf ( "Original book number : %d\n", books.elem[find(id)].number );
 		printf ( "Revised number :" );
 		int xiugai;
 		scanf ( "%d", &xiugai );
-		books.elem[id].number+=xiugai;
+		books.elem[id].number=xiugai;
         cout << "**********************" << endl;
 		printf ( "Revise success \n" );
+        cout << "**********************" << endl;
 	}
 	else printf ( "No such book\n");
 }
@@ -219,12 +228,12 @@ void DoReviseBook()
 // 排序图书
 void DoSortBook()
 {
-    cout << endl << "Sort Books" << endl << endl;
+    cout << endl << "Sort Books" << endl;
     int a=0;
     if (bookempty()) cout << "Book data empty"<< endl;
     else {
-        for (int i=1;i<books.length;i++)
-        for (int j=books.length;j>0;j--)
+        for (int i=1;i<books.length-1;i++)
+        for (int j=2;j<books.length;j++)
         {
             if (books.elem[i].id>books.elem[j].id) {
                 Book temp=books.elem[i];books.elem[i]=books.elem[j];books.elem[j]=temp;}
@@ -232,5 +241,6 @@ void DoSortBook()
     }
     cout << "*****************************" <<endl;
     cout << "Sort success"<<endl;
+    cout << "*****************************" <<endl;
 }  
 #endif // DATA_H_INCLUDED
\ No newline at end of file