feat(migrate): 将之前写好的部件迁移了过来

lib/mine/login.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+
+///
+/// 登录页
+///
+class Login extends StatefulWidget {
+  final Function successCallback;
+
+  const Login({
+    required Key key,
+    required this.successCallback,
+  }) : super(key: key);
+
+  @override
+  _LoginState createState() => _LoginState();
+}
+
+class _LoginState extends State<Login> {
+  @override
+  Widget build(BuildContext context) {
+    // TODO: implement build
+    return Scaffold(
+      appBar:  AppBar(
+          title: const Text(
+            '登录',
+            style: TextStyle(
+              fontSize: 30,
+            ),
+          ),
+          centerTitle: true,
+        ),
+      body: const Text('登录'),
+    );;
+  }
+}