diff --git a/index.php b/index.php
index a03314c..54d36c2 100644
--- a/index.php
+++ b/index.php
@@ -48,7 +48,7 @@
       <div class="PageHeader">
         <nav role="navigation" style="height:60px;">
           <div class="nav-wrapper container">
-            <div style="text-align:center;display:inline-block;padding:5px 0;width:100%;float:left;">本次答题限时10分钟&nbsp;&nbsp;&nbsp;&nbsp;剩余时间&nbsp;&nbsp;<span name="remtime">10:00</span></div>
+            <div style="text-align:center;display:inline-block;padding:5px 0;width:100%;float:left;">本次答题限时15分钟&nbsp;&nbsp;&nbsp;&nbsp;剩余时间&nbsp;&nbsp;<span name="remtime">15:00</span></div>
           </div>
         </nav>
       </div>
@@ -98,7 +98,7 @@
             <div class="input-field col s12" style="height:1px;overflow:hidden">
               <input value="<?php $timestart = date(" H:i:s ");echo $timestart;?>" type="text" class="validate" style="color:#fff" name="timestart">
             </div>
-            <div style="text-align:center;display:inline-block;padding:5px 0;width:100%;float:left;">本次答题限时10分钟&nbsp;&nbsp;&nbsp;&nbsp;剩余时间&nbsp;&nbsp;<span name="remtime">10:00</span></div>
+            <div style="text-align:center;display:inline-block;padding:5px 0;width:100%;float:left;">本次答题限时15分钟&nbsp;&nbsp;&nbsp;&nbsp;剩余时间&nbsp;&nbsp;<span name="remtime">15:00</span></div>
           </div>
           <div style="margin:0 auto;text-align:center;">
             <div class="btn waves-effect waves-light" id="hiddenDisplay" onclick="requestFirst()">开始</div>
diff --git a/test.php b/test.php
index e72fcc0..82e7844 100644
--- a/test.php
+++ b/test.php
@@ -16,9 +16,7 @@
     {
       die('对不起，您已参与过本活动。');
     }
-    $sql="INSERT IGNORE INTO UserAnswer (user_name, Student_ID, school, userclass, phone, ip, timeend ,timestart, thetime)
-    VALUES
-    ('$_POST[user_name]','$_POST[student_id]','$_POST[school]','$_POST[userclass]','$_POST[telephone]','$userIp','$timeend','$_POST[timestart]','$sec')";
+    $sql="INSERT INTO UserAnswer (user_name, Student_ID, school, userclass, phone, ip, timeend ,timestart, thetime) VALUES ('$_POST[user_name]','$_POST[student_id]','$_POST[school]','$_POST[userclass]','$_POST[telephone]','$userIp','$timeend','$_POST[timestart]','$sec')";
     if (!mysqli_query($sql,$con))
     {
       die("提交失败，请稍后重试。");