diff --git a/test.php b/test.php
index 85f7bc5..ddc0024 100644
--- a/test.php
+++ b/test.php
@@ -1,5 +1,5 @@
 <?php
-	header("Content-Type: text/html;charset=utf-8");
+  header("Content-Type: text/html;charset=utf-8");
     $userIp = $_SERVER["REMOTE_ADDR"];
     $timeend = date("H:i:s");
     //时间差
@@ -9,7 +9,7 @@
     //link to mysql
     $con = mysqli_connect("localhost","buptStudent","buptStudentlx","buptStudentdb");
     if (!$con){die('Could not connect: '.mysql_error());}
-    mysql_select_db("my_db_test", $con);
+    //mysql_select_db("my_db_test", $con);
     //name & student_id
     $chongfu="SELECT Student_ID FROM UserAnswer WHERE Student_ID=$_POST[student_id]";
     if(mysql_fetch_array(mysql_query($chongfu,$con))[0]==$_POST[student_id])
@@ -44,7 +44,7 @@
     //    mysql_query($sql3,$con);
     //  }
     $c= "aq_".$i;
-	$d=$_POST[$a]+$_POST[$b]*10;
+    $d=$_POST[$a]+$_POST[$b]*10;
     $sql5 = "UPDATE UserAnswer SET $c=$d WHERE Student_ID=$_POST[student_id]";
     if (!mysql_query($sql5,$con))
       {