感君一回顾，思君朝与暮。

<一> Flutter中的Button有ElevatedButton、TextButton、OutlinedButton、IconButton等

• 代码

  class ButtonDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        ElevatedButton(
          onPressed: () {
            print('点击事件');
          },
          child: Text('漂浮按钮'),
        ),
        TextButton(
          onPressed: () {
            print('点击事件');
          },
          child: Text("漂浮按钮"),
        ),
        TextButton.icon(
            label: Text("data"),
            onPressed: () {
              print('点击事件');
            },
            icon: Icon(Icons.add),
            style: TextButton.styleFrom(backgroundColor: Colors.red)
        ),
        OutlinedButton(onPressed: () {}, child: Text("OutlinedButton")),
        IconButton(onPressed: () {}, icon: Icon(Icons.home))
      ],
    );
  }
  }