windows怎么更改系统默认编码为utf-8？（避免编译从linux系统弄过来的c文件printf出现乱码问题）（beta版：使用unicode utf-8提供全球语言支持）
这样linux和windows的默认系统编码就统一成unicode：utf-8了但是，也会出现一些意想不到的情况，比如：20230816。
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这样linux和windows的默认系统编码就统一成unicode：utf-8了
但是，也会出现一些意想不到的情况，比如：
20230816
Windows系统下更改默认编码为UTF-8
本文将详细介绍如何在Windows系统下更改默认编码为UTF-8，以解决从Linux系统导入C文件并进行编译时，printf出现乱码问题的情况。此外，我们也会讨论使用Unicode UTF-8提供全球语言支持的Beta版。
系统默认编码及其影响
在一个操作系统中，系统默认编码是非常重要的。这是因为它直接影响到文件和程序的读写操作。例如，在不同的操作系统和平台之间移动代码或者数据文件时，可能会遇到一些字符编码问题，比如乱码问题。
特别地，在使用printf等函数打印输出字符或字符串时，如果源文件的字符编码与系统默认编码不匹配，就可能出现乱码问题。这在从Linux系统（默认使用UTF-8编码）导入C文件到Windows系统（默认可能是GBK或其他编码）时尤为常见。
更改Windows系统默认编码
下面是详细步骤，描述如何在Windows系统中更改默认编码为UTF-8：
1. 打开控制面板
在Windows搜索框中输入"控制面板"，然后按回车键。
Control Panel
2. 进入区域设置
点击"更改日期、时间或数字格式"，然后选择"管理"选项卡。
Change date, time or number formats -> Administrative tab
3. 更改系统区域设置
点击"更改系统区域设置"，然后选择"Beta版：使用Unicode UTF-8提供全球语言支持"。
Change system locale -> Beta: Use Unicode UTF-8 for worldwide language support
请注意，虽然这是一个beta版功能，但经过实际测试，该功能在大多数情况下都能够正常工作。
4. 重启电脑
保存设置并重启电脑，使更改生效。
请注意，此操作将影响整个系统，可能会导致某些只能在特定编码下工作的程序出现问题。因此，建议在执行此操作前创建系统还原点，以便于需要时可以恢复系统设置。
参考资料
- Microsoft Support: Change the system locale
- StackOverflow: How to change the default system encoding on Windows?
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