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('Text Field Demo'),
        ),
        body: Center(
          child: Container(
            padding: EdgeInsets.all(10.0),
            child: TextField(
              maxLines: 3, // 设置最大行数
              decoration: InputDecoration(
                hintText: 'Enter your text here', // 设置提示文本
              ),
            ),
          ),
        ),
      ),
    );
  }
}