add banbanmini

banban-mini/src/app.tsx

@@ -0,0 +1,12 @@
+import { useLaunch } from '@tarojs/taro'
+import './app.scss'
+
+function App(props) {
+  useLaunch(() => {
+    console.log('App launched.')
+  })
+
+  return props.children
+}
+
+export default App