这对测试您的代码有用，但一旦您要着手部署应用程序，则应当修改地址信息。
This is good for testing your code, but once you are ready to deploy your application, you should modify the address information.
程序会显示一个屏幕，可以在这里修改地址。
The application would then display a screen where your address could be changed.
但是，现在的一些兼容网卡，其MAC地址可以使用网卡配置程序进行修改。
But, present a few compatible nets get stuck, its MAC address can use a net to block configuration program to undertake modification.
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