UTF8 编码数据会误读为 Latin-1 会产生 ASCII 伪影吗？
UTF-8 单字节字符完美映射到 Latin-1 (ISO 8859-1) 字符（低于字符代码 128 的字符）；基本上是默认的 ASCII 字符。 如果我有一个 UTF-8 编码的字符串并将其传递给需要 Latin-1 字符串的函数，Latin-1 函数是否有可能将部分 UTF-8 多字节字符误解为 ASCII 字符？
我想象这样的事情可能发生：
（imagniray）UTF-8多字节字符：0xA330
由 Latin-1 函数（错误）解释为两个 Latin-1 字符： 0xA3 0x30
其中第一个字符不在 ASCII 集中，但第二个是0 字符的 ASCII 代码。多字节 UTF-8 字符是否有可能产生看起来像上例中的单字节 UTF-8 / ASCII 字符的伪像？
根据我对 UTF-8 的理解，只有单字节字符包含未设置最高有效位的任何字节，因此基本上多字节字符永远不会包含可能被 Latin-1 函数误解为有效 ASCII 字符的字节（因为所有这些字符最高有效位未设置）。但我想确保这是真的，并且我不会搞砸这一点，因为这在处理数据清理时可能会产生安全隐患 - 我显然目前正在这样做。
UTF-8 single byte characters map perfectly to Latin-1 (ISO 8859-1) characters (those below the character code of 128); basicly the default ASCII characters.
If I have a UTF-8 encoded string and pass it to a function, that expects a Latin-1 string is there any possibility that the Latin-1 function misinterprets parts of UTF-8 mutlibyte characters as ASCII characters?
I imagine something like this could happen:
(imagniray) UTF-8 multibyte character: 0xA330
(mis-)interpreted by Latin-1 function as two Latin-1 characters: 0xA3 0x30
The first of those characters does not lie within the ASCII set, but the second is the ASCII code for the 0 character. Is it possible that an multibyte UTF-8 character produces an artifact that looks like a single-byte UTF-8 / ASCII character like in the example above?
From my understanding of UTF-8 only single-byte characters contain any bytes with the most significant bit unset, so basicly multibyte characters never contain a byte that could be misinterpreted by a Latin-1 function as a valid ASCII character (because all those characters have the most significant bit unset). But I want to make sure this is true and I don't screw up on this, because this may have security implications when dealing with data sanitization - which I am apparently currently doing.
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您的理解是正确的，只有单字节字符包含未设置最高有效位的任何字节。有一个很好的表格显示了这一点： http://en.wikipedia.org/wiki/ UTF-8#描述
You are correct in your understanding that only single byte characters contain any bytes with the most significant bit unset. There is a nice table showing this at: http://en.wikipedia.org/wiki/UTF-8#Description