华山派developer的博客

效果图 import 'package:flutter/material.dart'; void main()=> runApp(new MyApp()); class MyApp extends StatelessWidget{ @override Widget build(BuildContext context){ return MaterialApp( title: "Align组件", home:Scaffold( //。。。。。。。

先上代码 import 'package:flutter/material.dart'; void main()=> runApp(new MyApp()); class MyApp extends StatelessWidget{ @override Widget build(BuildContext context){ return MaterialApp( title: "Align组件", home:Scaffold( appBa