第一次提交

lib/pages/main/index.dart

@@ -0,0 +1,22 @@
+import "package:flutter/material.dart";
+
+class MainPage extends StatefulWidget {
+  const MainPage({super.key});
+
+  @override
+  State<MainPage> createState() => _MainPageState();
+}
+
+class _MainPageState extends State<MainPage> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("Main Page"),
+      ),
+      body: Center(
+        child: Text("This is the main page."),
+      ),
+    );
+  }
+}