有没有办法检查 C# 字符串的编码？
可能的重复：
确定 C# 中字符串的编码
我相信如果我创建一个字符串，它默认 UTF8，但是，如果字符串是在其他地方创建的，并且我想在处理它之前更加安全并检查它的编码是什么，我看不到任何使用字符串或 Encoding 类来做到这一点的简单方法。我是否遗漏了某些内容，或者 C# 字符串无论如何都始终是 UTF8？
Possible Duplicate:
Determine a string's encoding in C#
I believe if I create a string it defaults to UTF8, however if the string is created else where and I want to be extra safe before dealing with it and check what its encoding is I do not see any easy way to do that using the string or Encoding class. Am I missing something or is a C# string always UTF8 no matter what?
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C#（好吧，.NET）中的字符串实际上没有有编码...或者您可以将它们全部视为 UTF-16，因为它们是
char< 的序列/code> 值，它们是 UTF-16 代码单元。然而，通常情况下，当您从字符串转换为二进制形式（例如，转换为套接字或转换为文件）时，您只需要关心编码。此时，您应该显式指定编码 - 字符串本身没有这个概念。
“默认”为 UTF-8 的唯一方面是，有大量 .NET API 被重载以接受或不接受编码，如果未指定编码，则使用 UTF-8。
File.ReadAllText就是一个例子。但是，读取文件后，“从 UTF-8 文件读取的文本”和“从 Big5 文件读取的文本”等之间没有区别。Strings in C# (well, .NET) don't have encoding, effectively... or you can view them all as UTF-16, given that they're a sequence of
charvalues, which are UTF-16 code units.Normally, however, you only need to care about encoding when you convert from a string to a binary form (e.g. down a socket or to a file). At that point, you should specify the encoding explicitly - the string itself has no concept of this.
The only aspect which "defaults" to UTF-8 is that there are plenty of .NET APIs which are overloaded to either accept an encoding or not, and if no encoding is specified, UTF-8 is used.
File.ReadAllTextis an example of this. However, after reading the file there's no distinction between "text which was read from a UTF-8 file" and "text which was read from a Big5 file" etc.