bug fix

 <view>
-  <block wx:if="{{product.status === 0}}">
+  <block wx:if="{{product.status === 0 || product.is_full === 1}}">
     <view class="btn cancel" >活动结束</view>
   </block>
 

@@ -38,7 +38,7 @@ Component({
         },1000)
       },
       formatCountDown:function formatCountDown(end) {
-        if (end === 0) {
+        if (end === 0 || (end * 1000 - Date.now() < 0)) {
           return '00000000'
         }
         var timeInSecond = (end * 1000 - Date.now()) / 1000

@@ -232,9 +232,9 @@ Page(Object.assign({
 
         let participantCount = r1.code === 200 ? r1.data.joinNum : 0;
 
-        if (product.status >= ACTIVITY.END) {
-          participantCount = product.limit;
-        }
+        // if (product.status >= ACTIVITY.END) {
+        //   participantCount = product.limit;
+        // }
 
         this.setData({
           product: product,