最近搜索为空，不显示删除按钮

@@ -165,8 +165,10 @@ function isLocalStorageSupported() {
             }
             }
 
 
             $history.html(html);
             $history.html(html);
+            if (html !== '') {
                 $clearHistory.removeClass('hide');
                 $clearHistory.removeClass('hide');
                 $historySearch.removeClass('hide');
                 $historySearch.removeClass('hide');
+            }
             window.rePosFooter();
             window.rePosFooter();
         }
         }
     }
     }