feats

src/app.js

 class App extends Component {
 
   onLaunch(options) {
+    // 预拉取数据
+    Taro.getBackgroundFetchData({
+      fetchType: 'pre',
+      success(res) {
+        console.log(res.fetchedData)
+      }
+    })
+
+
     Taro.login({
       success: (res) => {
         const { code } = res;