add

miaomiao/www/js/controllers/home.js

@@ -447,6 +447,10 @@
                 $scope.timer = '已结束';
                 return;
             }
+            if (countDown<=0) {
+                $scope.timer = '已结束';
+                return;
+            }
             var day=parseInt(countDown/(24*60*60));
             var h=parseInt(countDown/(60*60)%24);
             var m=parseInt(countDown/60%60);