fix length

replay-dashboard.html

@@ -25,13 +25,13 @@
             <input type="password" class="form-control" id="password" value="" placeholder="password">
         </div>
         <div class="col-lg-1">
-            <button class="btn btn-default" id="empty_button">清空记录</button>
+            <button class="btn btn-default" id="open_button">刷新</button>
         </div>
         <div class="col-lg-1">
-            <button class="btn btn-default" id="pack_button">打包下载录像</button>
+            <button class="btn btn-default" id="empty_button">清空记录</button>
         </div>
         <div class="col-lg-2">
-            <button class="btn btn-default" id="open_button">刷新</button>
+            <button class="btn btn-default" id="pack_button">打包下载录像</button>
             共有<span id="num">0</span>场决斗
         </div>
     </div>