问IoC和DI的特性

EN

public MyController()
{
    _logger = new Logger();
    _configProvider = new ConfigProvider();
    _customerService = new CustomerService();
    _orderService = new OrderService();
}

public MyController(ILogger logger, IConfigProvider configProvider, ICustomerService customerService, IOrderService orderService)
{
    _logger = logger;
    _configProvider = configProvider;
    _customerService = customerService;
    _orderService = orderService;
}