我问了下ChatGPT 对于文字工作者 刚买电脑需要注意 系统语言和UTF-8编码

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啥是Unicode，啥是UTF-8编码？为什么我的电脑里，有时打开一个txt文档，是乱码？为什么我从英语网页复制下来到txt里的英语文章，显示的却是中文的引号等符号？
这些事情，只有多年使用电脑，需要和不同语言打交道，需要了解网络编程语言的。才会明白的。如果不需要的，也不需要懂了。开心就好。
我还顺便问了下ChatGPT.

问：
When I buy a new computer, and install a system, should I set up UTF-8 encoding?

CHatGPT：
Yes, it is generally recommended to set up your new computer with UTF-8 encoding when you install a new system. UTF-8 is a character encoding standard that supports a wide range of characters from various languages and scripts, including those that are not part of the ASCII character set (which only supports English characters). By setting up your computer with UTF-8 encoding, you ensure that you can properly handle and display text in different languages, including special characters, emojis, and other symbols.

Setting up your computer with UTF-8 encoding is especially important if you plan to work with or communicate in languages other than English, or if you expect to encounter text that includes non-ASCII characters. Many modern software applications, websites, and communication protocols rely on UTF-8 encoding as the standard for handling multilingual text. Therefore, it's generally a good practice to set up your computer with UTF-8 encoding during the installation process or as part of your system configuration to avoid potential text display issues or data corruption caused by character encoding mismatches.

Most modern operating systems, including Windows, macOS, and Linux, already use UTF-8 encoding as the default character encoding. However, it's always a good idea to double-check and ensure that your system is configured to use UTF-8 encoding to ensure proper handling of multilingual text. You can usually configure the character encoding settings in the system preferences or settings of your operating system or individual applications.

问：
Why is not there a standardised encoding setup, like UTF-8 encoding, for all the users, throughout the whole world?

CHatGPT：
UTF-8 encoding is actually a standardized character encoding that is widely used and supported across different systems and platforms. It has become the de facto standard for handling multilingual text in modern computing due to its versatility, backward compatibility with ASCII, and support for a wide range of characters from various scripts and languages.
However, despite the widespread adoption of UTF-8 encoding, there are still some legacy systems, applications, and protocols that may not fully support or default to UTF-8 encoding. This can be due to historical reasons, backward compatibility requirements, or limitations in older hardware or software. Additionally, some specific industries or regions may have their own encoding standards or requirements for historical or cultural reasons.
Another reason for the lack of a single standardized encoding setup for all users worldwide is the diversity and complexity of languages and writing systems used across the globe. Different languages have different sets of characters, scripts, and writing conventions, which can require different encoding standards or configurations. Therefore, having a single encoding setup that works for all languages and scripts can be challenging.
Furthermore, character encoding is a complex and evolving field, and new encoding standards and techniques may continue to emerge in the future. As technology advances and communication becomes more global, there may be further standardization efforts or improvements to existing encoding standards.
In summary, while UTF-8 encoding has become a widely adopted standard for handling multilingual text, there are still some legacy systems and regional variations that may not fully support it. The diversity of languages and writing systems used worldwide, as well as the complexity of encoding standards, can be reasons why there isn't a single standardized encoding setup for all users throughout the world. However, UTF-8 encoding has become the de facto standard for modern computing due to its versatility and wide support.

问：
What is the difference between Unicode and UTF-8 encoding?

ChatGPT：
Unicode and UTF-8 are related but distinct concepts in the realm of character encoding.

Unicode is a standardized character encoding system that assigns a unique numeric value, called a code point, to each character in a vast repertoire of characters from different scripts and languages. Unicode provides a consistent way to represent, store, and manipulate text in different writing systems, including characters from Latin, Cyrillic, Chinese, Arabic, and many other scripts.
On the other hand, UTF-8 (Unicode Transformation Format-8) is a specific encoding scheme that is used to represent Unicode characters as a sequence of 8-bit bytes for storage and transmission in computer systems. UTF-8 is designed to be backward-compatible with ASCII, which is a widely used character encoding system that represents English characters using 7 bits or 8 bits. In UTF-8, ASCII characters are represented using a single byte (8 bits) with the same binary value as their ASCII encoding, while non-ASCII characters are represented using multiple bytes, with the number of bytes depending on the character's Unicode code point.
In summary, Unicode is a standardized character encoding system that assigns unique code points to characters from different scripts, while UTF-8 is a specific encoding scheme that represents Unicode characters as a sequence of 8-bit bytes. UTF-8 is one of several encoding schemes that can be used to represent Unicode characters in computer systems, and it is designed to be backward-compatible with ASCII.


问：
When I save a .txt document, in the windows system with ASCII, say, I am using a Chinese Windows 10 system, which one is better to choose among ANSI, Unicode, Unicode big endian, and UTF-8? They appear in the drop down box.

ChatGPT：
When saving a .txt document in a Chinese Windows 10 system, if you need to support Chinese characters or any other non-ASCII characters in the document, it's generally recommended to choose either Unicode or UTF-8 encoding from the drop-down box for character encoding options, depending on your specific needs.

• ANSI: ANSI encoding, also known as Windows-1252 or CP1252, is a legacy character encoding that supports a limited set of characters, primarily for English and other Western European languages. ANSI encoding may not properly represent Chinese characters or other non-ASCII characters, and can result in data loss or text display issues if used for documents that contain non-ASCII characters.
• Unicode: Unicode encoding, also known as UTF-16, is a widely used standard that supports a vast repertoire of characters from different scripts and languages, including Chinese characters. Unicode encoding uses 16 bits per character, which allows it to represent a large number of characters, but it may result in larger file sizes compared to ANSI encoding.
• Unicode big endian: Unicode big endian encoding, also known as UTF-16BE, is a variant of Unicode encoding that stores the most significant byte (MSB) of each character first. It is less commonly used than UTF-16 and UTF-8, and its use is generally limited to specific scenarios or legacy systems that require big endian byte order.
• UTF-8: UTF-8 encoding is a widely used and versatile encoding that supports the entire Unicode character repertoire. UTF-8 uses a variable-length encoding, where ASCII characters are represented using a single byte (8 bits), and non-ASCII characters are represented using multiple bytes, with the number of bytes depending on the character's Unicode code point. UTF-8 is backward-compatible with ASCII, which means that ASCII text is also valid UTF-8 text.
  

In general, if you need to support Chinese characters or any other non-ASCII characters in your .txt document, it's recommended to choose either Unicode or UTF-8 encoding, as these are widely supported and can properly represent a wide range of characters from different scripts and languages. UTF-8 is a popular choice due to its versatility, backward compatibility with ASCII, and efficient use of space for ASCII text. However, the specific encoding option to choose may also depend on the requirements of the system or application you are working with, so it's always a good idea to consult any relevant documentation or guidelines provided by the system or application to ensure proper character encoding handling.

问：
What will you suggest when I am ready to buy a new computer and install a windows system?

ChatGPT：
When you're buying a new computer and planning to install a Windows system, it's recommended to choose the default encoding option provided by the Windows installer, which is typically UTF-8. UTF-8 is a widely used and versatile encoding that can properly represent a vast repertoire of characters from different scripts and languages, including Chinese characters.

UTF-8 has several advantages, including:

• Versatility: UTF-8 supports the entire Unicode character repertoire, which means it can represent characters from virtually all scripts and languages in the world, including Chinese characters. This makes it suitable for handling multilingual text and accommodating diverse language requirements.
• Backward Compatibility: UTF-8 is backward-compatible with ASCII, which means that ASCII text is also valid UTF-8 text. This ensures that text encoded in ASCII will be properly interpreted in UTF-8 encoding without any loss of data or text display issues.
• Space Efficiency: UTF-8 uses a variable-length encoding, where ASCII characters are represented using a single byte (8 bits), which is the same as their ASCII encoding. This means that for text containing mostly ASCII characters, UTF-8 encoding will result in the same file size as ASCII encoding, providing efficient use of storage space.
• Widely Supported: UTF-8 is widely supported in modern computing systems, applications, and web standards, making it a safe and future-proof choice for encoding text.
  

Overall, choosing UTF-8 as the encoding option when installing a Windows system is a recommended approach to ensure proper handling of Chinese characters and other non-ASCII characters in your text documents, while maintaining compatibility with ASCII and ensuring efficient use of storage space. However, it's always a good idea to consult any relevant documentation or guidelines provided by the Windows installer or other software you are using to ensure proper character encoding handling in your specific environment.

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When saving a .txt document in a Chinese Windows 10 system, if you need to support Chinese characters or any other non-ASCII characters in the document, it's generally recommended to choose either Unicode or UTF-8 encoding from the drop-down box for character encoding options, depending on your specific needs.

    ANSI: ANSI encoding, also known as Windows-1252 or CP1252, is a legacy character encoding that supports a limited set of characters, primarily for English and other Western European languages. ANSI encoding may not properly represent Chinese characters or other non-ASCII characters, and can result in data loss or text display issues if used for documents that contain non-ASCII characters.
    Unicode: Unicode encoding, also known as UTF-16, is a widely used standard that supports a vast repertoire of characters from different scripts and languages, including Chinese characters. Unicode encoding uses 16 bits per character, which allows it to represent a large number of characters, but it may result in larger file sizes compared to ANSI encoding.
    Unicode big endian: Unicode big endian encoding, also known as UTF-16BE, is a variant of Unicode encoding that stores the most significant byte (MSB) of each character first. It is less commonly used than UTF-16 and UTF-8, and its use is generally limited to specific scenarios or legacy systems that require big endian byte order.
    UTF-8: UTF-8 encoding is a widely used and versatile encoding that supports the entire Unicode character repertoire. UTF-8 uses a variable-length encoding, where ASCII characters are represented using a single byte (8 bits), and non-ASCII characters are represented using multiple bytes, with the number of bytes depending on the character's Unicode code point. UTF-8 is backward-compatible with ASCII, which means that ASCII text is also valid UTF-8 text.

In general, if you need to support Chinese characters or any other non-ASCII characters in your .txt document, it's recommended to choose either Unicode or UTF-8 encoding, as these are widely supported and can properly represent a wide range of characters from different scripts and languages. UTF-8 is a popular choice due to its versatility, backward compatibility with ASCII, and efficient use of space for ASCII text. However, the specific encoding option to choose may also depend on the requirements of the system or application you are working with, so it's always a good idea to consult any relevant documentation or guidelines provided by the system or application to ensure proper character encoding handling.

在中文Windows 10系统中保存.txt文档时，如果你需要在文档中支持中文字符或其他非ASCII字符，一般建议根据你的具体需求，在字符编码选项的下拉框中选择Unicode或UTF-8编码。

    ANSI: ANSI编码，也被称为Windows-1252或CP1252，是一种传统的字符编码，支持有限的字符集，主要用于英语和其他西欧语言。ANSI编码可能无法正确表示中文字符或其他非ASCII字符，如果用于包含非ASCII字符的文档，可能会导致数据丢失或文本显示问题。
    Unicode： Unicode编码，也被称为UTF-16，是一个广泛使用的标准，支持来自不同脚本和语言的大量字符，包括中文字符。Unicode编码每个字符使用16位，这使得它可以代表大量的字符，但与ANSI编码相比，它可能会导致更大的文件大小。
    Unicode big endian： Unicode big endian编码，也被称为UTF-16BE，是Unicode编码的一个变体，它将每个字符的最重要的字节（MSB）存储在前面。与UTF-16和UTF-8相比，它不太常用，它的使用通常仅限于需要大恩典字节顺序的特定场景或遗留系统。
    UTF-8：UTF-8编码是一种广泛使用的多功能编码，支持整个Unicode字符库。UTF-8使用可变长度的编码，ASCII字符用一个字节（8位）表示，非ASCII字符用多个字节表示，字节的数量取决于字符的Unicode码位。UTF-8与ASCII是向后兼容的，这意味着ASCII文本也是有效的UTF-8文本。

一般来说，如果你需要在你的.txt文档中支持中文字符或任何其他非ASCII字符，建议选择Unicode或UTF-8编码，因为这些编码被广泛支持，可以正确表示不同脚本和语言的各种字符。UTF-8是一个受欢迎的选择，因为它的通用性，与ASCII的向后兼容性，以及对ASCII文本空间的有效利用。然而，选择具体的编码选项也可能取决于你所使用的系统或应用程序的要求，因此，查阅系统或应用程序提供的任何相关文档或指南以确保正确的字符编码处理，总是一个好主意。

通过www.DeepL.com/Translator（免费版）翻译

【桐木舟编辑】需要注意的是，这里，“ANSI编码可能无法正确表示中文字符”，ChatGPT也应该是说得不严谨。可能它的意思是，如果，在英语系统下，保存为ANSI编码，中文内容就无法正确显示，就会显示乱码。而我们知道，当使用中文windows系统下，保留成ANSI编码，毫无疑问，是可以正确显示中文字符的。