diff --git a/anser.php b/anser.php
index e4fabdf..f4c0378 100644
--- a/anser.php
+++ b/anser.php
@@ -63,7 +63,7 @@
             <?php
             //link to mysql
             $con=mysqli_connect("localhost","buptStudent","buptStudentlx","buptStudentdb");
-            if (!$con){die('Could not connect:' . mysql_error());};
+            if (!$con){echo 'Could not connect:' . mysql_error();};
             //mysql_select_db("my_db_test", $con);
             $p = 20;
             $pp = 0;
@@ -74,7 +74,7 @@
             for($i = 1;$i <= $p;$i++){
               $random = $randomArray[$i];
               $chongfu="SELECT Student_ID FROM UserAnswer WHERE Student_ID=$_SESSION[Student_ID]";
-              $result2 = mysqli_query($con,"SELECT * FROM UserAnswer WHERE Student_ID = '$_SESSION[Student_ID]'";
+              $result2 = mysqli_query($con,"SELECT * FROM UserAnswer WHERE Student_ID = '$_SESSION[Student_ID]'");
               if(!mysqli_fetch_array(mysqli_query($con,$chongfu))[0]==$_SESSION[student_id]){
                   echo '请先完成问卷'；
               }else{