如何使用中心和列小部件内的对齐小部件在底部有两个按钮？

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Align and Column Example'),
        ),
        body: Align(
          alignment: Alignment.bottomCenter,
          child: Column(
            mainAxisAlignment: MainAxisAlignment.end,
            children: [
              RaisedButton(
                onPressed: () {
                  // 点击按钮1的回调函数
                },
                child: Text('按钮1'),
              ),
              RaisedButton(
                onPressed: () {
                  // 点击按钮2的回调函数
                },
                child: Text('按钮2'),
              ),
            ],
          ),
        ),
      ),
    );
  }
}