diff --git a/LibManagementSystem/book_info.cpp b/LibManagementSystem/book_info.cpp
index 3218563beb412287b057adc3c469c33ca1bf2e34..fb2342e0ceab0d3e5ea91e7e4b5f6012dce8e70f 100644
--- a/LibManagementSystem/book_info.cpp
+++ b/LibManagementSystem/book_info.cpp
@@ -28,6 +28,7 @@ book_info::book_info(User *u,Book v,QHash<QString,QPixmap*>*Pixmap,QWidget *pare
     ui->opre->setText(q);
     ui->onu->setText(toQstring(v.num));
     ui->oty->setText(v.type);
+    ui->pushButton->hide();
 }
 
 book_info::~book_info()
@@ -43,6 +44,7 @@ void book_info::picture_get()
         ui->progressBar->hide();
         ui->bkcover->setPixmap(*((*pixmap)[QString::number(book.lib_code)]));
     }
+    ui->pushButton->show();
 }
 
 void book_info::picture_fail(QString e)
@@ -53,6 +55,7 @@ void book_info::picture_fail(QString e)
     box->setText(e);
     box->show();
     ui->reload->show();
+    ui->pushButton->show();
 }
 
 void book_info::on_reload_clicked()
@@ -104,6 +107,23 @@ void book_info::on_pushButton_clicked()
         QByteArray msg;
         char t = stopChar;
         msg += "BORROW" + toQstring(book.lib_code).toStdString() + t + user->account.toStdString();
+        if(borbookcut(user->appointedbook,1) == book.name)
+        {
+            QStringMatcher match("预约");
+            int re = QMessageBox::question(this,"提示","此书为您预约的书籍，是否取消预约并完成借阅？"
+                                           ,QMessageBox::Yes|QMessageBox::No);
+            switch(re){
+            case QMessageBox::Yes:
+                emit send_bkif(msg);
+                if(match.indexIn(user->message) != -1){
+                    user->message = "";
+                }
+                return;
+
+            default:
+                return;
+            }
+        }
         emit send_bkif(msg);
         return;
     }
diff --git a/LibManagementSystem/borrow.cpp b/LibManagementSystem/borrow.cpp
index e7a95b52779d370efe6c5cfb6a18105315489681..8599ef8ac8530dd87b41aff8c6bb072dde4529e5 100644
--- a/LibManagementSystem/borrow.cpp
+++ b/LibManagementSystem/borrow.cpp
@@ -265,6 +265,7 @@ void borrow::fillInfo()
             ui->to_userInfo->setText("· " + t + "··");
         }
     }
+    clearall();
 }
 
 void borrow::on_to_userInfo_clicked()
diff --git a/LibManagementSystem/mainwindow.cpp b/LibManagementSystem/mainwindow.cpp
index 47497ce60ced738ebe51157b23298837b04bb5e3..68c63dad97b38bd649b97563cbadabaf09a95195 100644
--- a/LibManagementSystem/mainwindow.cpp
+++ b/LibManagementSystem/mainwindow.cpp
@@ -277,6 +277,10 @@ void MainWindow::loncon()
 void MainWindow::ifborcon()
 {
     disconnectAll();
+    disconnect(sea->w,&book_info::ifborcon,this,&MainWindow::ifborcon);
+    disconnect(sea->w,&book_info::ifappcon,this,&MainWindow::ifappcon);
+    disconnect(client,&communication_module::sendfail,sea->w,&book_info::fail_infoapp);
+    disconnect(client,&communication_module::msg_received,sea->w,&book_info::receive_infoapp);
     connect(sea->w,&book_info::send_bkif,client,&communication_module::sendmsgPreparation);
     connect(client,&communication_module::sendfail,sea->w,&book_info::fail_infobor);
     connect(client,&communication_module::msg_received,sea->w,&book_info::receive_infobor);
@@ -286,6 +290,10 @@ void MainWindow::ifborcon()
 void MainWindow::ifappcon()
 {
     disconnectAll();
+    disconnect(client,&communication_module::sendfail,sea->w,&book_info::fail_infobor);
+    disconnect(client,&communication_module::msg_received,sea->w,&book_info::receive_infobor);
+    disconnect(sea->w,&book_info::ifborcon,this,&MainWindow::ifborcon);
+    disconnect(sea->w,&book_info::ifappcon,this,&MainWindow::ifappcon);
     connect(sea->w,&book_info::send_bkif,client,&communication_module::sendmsgPreparation);
     connect(client,&communication_module::sendfail,sea->w,&book_info::fail_infoapp);
     connect(client,&communication_module::msg_received,sea->w,&book_info::receive_infoapp);
diff --git a/LibManagementSystem/search.cpp b/LibManagementSystem/search.cpp
index 212051942a5040d092e5d3d1814ceaa268c94f79..23d786acb0f983294241ab244dcbab71d5da2166 100644
--- a/LibManagementSystem/search.cpp
+++ b/LibManagementSystem/search.cpp
@@ -69,6 +69,10 @@ void search::on_back_clicked()
     ui->bpress->clear();
     ui->comboBox->setCurrentIndex(0);
     mod->setRowCount(0);
+    i=1;
+    ui->page->setText("");
+    ui->pre->show();
+    ui->pos->show();
 }
 void search::on_search_2_clicked()
 {
@@ -206,6 +210,10 @@ void search::on_to_userInfo_clicked()
     ui->bauthor->clear();
     ui->bpress->clear();
     ui->comboBox->setCurrentIndex(0);
+    i=1;
+    ui->page->setText("");
+    ui->pre->show();
+    ui->pos->show();
 }