import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends StatelessWidget { var gg = 120; @override Widget build(BuildContext context) { var title = 'Web Images'; print("zhege:${gg}"); return new MaterialApp( title: title, home: new Scaffold( appBar: new AppBar( title: new Text(title), ), body: Container( color: Colors.red, height: 500.0, 300.0, child: Column( mainAxisAlignment: MainAxisAlignment.spaceEvenly, crossAxisAlignment: CrossAxisAlignment.center, mainAxisSize: MainAxisSize.min, verticalDirection: VerticalDirection.up, children: <Widget>[ Container( color: Colors.red, child: Text("Column组件1",), ), Container( color: Colors.red, child: new Image.network( 'http://5b0988e595225.cdn.sohucs.com/q_mini,c_zoom,w_640/images/20171007/f1cfa788964748a6b932b75c68954f26.gif', ), ), Container( color: Colors.red, child: new Image.network( 'http://a2.qpic.cn/psb?/V103QLwW3tNJ8h/L1pgnun*HP5hpxJvgD39QU*vVyoeLkoiWPyqV8FCUMk!/a/dGUAAAAAAAAA&bo=uQKAAgAAAAAFFw0!&rf=viewer_0&t=5', ), ), ], ), ), ), ); } }