首页数据加载的bug

@@ -24,26 +24,11 @@ Page({
       activity_pageNum: 4
     }
     app.post(url, params, head).then((res) => {
-      if (res.news.length > 0) {
-        that.setData({
-          page_type: true
-        })
-      } else {
-        that.setData({
-          page_type: false
-        })
-      }
-      if (that.data.news == null) {
-        that.setData({
-          datalist: res,
-          activity: res.activity,
-          news: res.news
-        })
-      } else {
-        that.setData({
-          news: that.data.news.concat(res.news)
-        })
-      }
+      that.setData({
+        datalist: res,
+        activity: res.activity,
+        news: res.news
+      })
     }).catch((err) => {
 
     })