文章目录Center (居中布局)Padding (填充布局)Align (对齐布局) Center (居中布局) 在Center布局中,子元素处于水平和垂直方向的中间位置。代码如下: void main() => runApp(MyApp()); class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( title:
