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  "contentMarkdown": "# c#获取的mac地址为00:00:00:00:00:0000EE是为什么\n\n> [!note] 我的 UWA 问答\n> 本文收录我在 UWA 问答发表的公开回答。问题内容归原提问者；回答保留当时语境，技术结论可能受 Unity 版本、平台和项目条件限制。\n\n## 问题\n\nc#获取的mac地址为00:00:00:00:00:0000EE是为什么，代码是这样写的\n\n大部分是能够获取正常的mac地址的，但是会有个别机子获取的是0的情况\n\n```\npublic static string GetWindowsMac()\n\n{\n\n        NetworkInterface[] Net = NetworkInterface.GetAllNetworkInterfaces();\n\n        string macs = null;\n\n        ;\n\n        foreach (NetworkInterface item in Net)\n\n        {\n\n            if (!string.IsNullOrEmpty(item.GetPhysicalAddress().ToString()))\n\n            {\n\n                macs = item.GetPhysicalAddress().ToString();\n\n                for (int i = 1; i < 6; i++)\n\n                {\n\n                    macs = macs.Insert(3 * i - 1, \":\");\n\n                }\n\n            }\n\n        }\n\n        return macs;\n\n}\n```\n\n- 提问者：程序猿小Y\n- 提问时间：2021-07-16 23:13:40\n\n## 我的回答\n\n首先这个脚本不太合理，GetAllNetworkInterfaces会获取到多个网络接口的信息，foreach 每次都修改变量macs，最终只能返回 最后一个网络接口的mac地址。\n\n可以把所有接口的mac地址都打出来试试。用命令行 ipconfig /all 也可以查看。\n\n如果系统的网络接口地址确实有问题，可以看看是不是网络驱动的问题，升级或重装驱动试试。\n\n- 回答时间：2021-08-04 09:32:59\n- 最后更新：2021-08-04 09:32:59\n- 采纳状态：未采纳\n\n## 来源与关系\n\n- 上位集合：[[10-计算机、信息技术与工程/05-游戏图形与运行时/我的UWA问答/我的UWA问答|我的 UWA 问答]]\n- UWA 标签：终端平台\n- 原始问题：[c#获取的mac地址为00:00:00:00:00:0000EE是为什么](https://answer.uwa4d.com/question/60f131a494846f188da36952)\n- 源页最后更新：2021-08-04 09:32:59\n"
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