createUser static method
模拟创建用户(POST 请求)
Implementation
static Future<User> createUser(String name, String email) async {
await Future.delayed(const Duration(seconds: 2));
if (name.isEmpty) {
throw Exception('用户名不能为空');
}
return User(id: DateTime.now().millisecondsSinceEpoch, name: name, email: email);
}