fix

replay-dashboard.html

@@ -26,7 +26,7 @@
         </div>
         <div class="col-lg-4">
             <button class="btn btn-default" id="open_button">刷新</button>
-            <button class="btn btn-default" id="empty_button">清空</button>
+            <button class="btn btn-default" id="empty_button">清空记录</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>