基本转换查询 [英] Basic Conversion Query
问题描述
我有一个字符串（System.String），它包含一些数据。这个数据是UTF8中的
编码（即字符串中应该有一个
单个''é''字符的任何地方，会有两个字符持有
相当于UTF8格式的那个字符）。
如何解码这个UTF8编码的字符串？
在Delphi中我可以简单地说：
myString = UTF8ToAnsi（myString）;
如何使用.NET执行此操作？
我尝试使用通用静态方法来执行此操作：
私有静态字符串Utf8ToAscii（字符串值）
{
byte [] utf8Bytes = Encoding.UTF8.GetBytes（value）;
byte [] asciiBytes = Encoding.Convert（Encoding.UTF8，
Encoding.Unicode，utf8Bytes）;
返回Encoding.Unicode.GetString（asciiBytes）;
}
....但它并没有按照预期工作。这只会导致一对
编码的字符被替换为''？''字符。
TIA
Hi,
I have a string (System.String) which holds some data. This data is
encoding in UTF8 (i.e. anywhere in the string where there should be a
single ''é'' character, there will be two characters holding the
equivalent of that character in the UTF8 format).
How can I decode this UTF8-encoded string?
In Delphi I could simple say:
myString = UTF8ToAnsi(myString);
How can I do this using .NET?
I tried making a general-purpose static method to do this:
private static string Utf8ToAscii(string value)
{
byte[] utf8Bytes = Encoding.UTF8.GetBytes(value);
byte[] asciiBytes = Encoding.Convert(Encoding.UTF8,
Encoding.Unicode, utf8Bytes);
return Encoding.Unicode.GetString(asciiBytes);
}
....but it doesn''t work as desired. This just causes the pair of
encoded characters to be replaced to ''?'' characters.
TIA
推荐答案
查看System.Text.UTF8Encoding类：
http://tinyurl.com/kh15
-
Greetz
Jan Tielens
________________________________
阅读我的博客： http://weblogs.asp.net/jan
" C＃Learner" < CS **** @ learner.here>在消息中写道
news：uc ******************************** @ 4ax.com ...
Check out the System.Text.UTF8Encoding class:
http://tinyurl.com/kh15
--
Greetz
Jan Tielens
________________________________
Read my weblog: http://weblogs.asp.net/jan
"C# Learner" <cs****@learner.here> wrote in message
news:uc********************************@4ax.com...
我有一个字符串（System.String），它包含一些数据。这个数据是以UTF8格式编码的（即字符串中应该有单个''''字符的任何地方，将有两个字符，其中包含相当于该字符的
UTF8格式）。
如何解码这个UTF8编码的字符串？
在Delphi中我可以简单地说：
myString = UTF8ToAnsi（myString ）;
如何使用.NET实现这一点？
我尝试使用通用的静态方法来执行此操作：
私有静态string Utf8ToAscii（string value）
{
byte [] utf8Bytes = Encoding.UTF8.GetBytes（value）;
byte [] asciiBytes = Encoding.Convert（Encoding.UTF8，
Encoding.Unicode，utf8Bytes）;
返回Encoding.Unicode.GetString（asciiBytes）;
}
...但它没有按预期工作。这只会使一对
编码的字符被替换为''？''字符。
TIA
Hi,
I have a string (System.String) which holds some data. This data is
encoding in UTF8 (i.e. anywhere in the string where there should be a
single ''é'' character, there will be two characters holding the
equivalent of that character in the UTF8 format).
How can I decode this UTF8-encoded string?
In Delphi I could simple say:
myString = UTF8ToAnsi(myString);
How can I do this using .NET?
I tried making a general-purpose static method to do this:
private static string Utf8ToAscii(string value)
{
byte[] utf8Bytes = Encoding.UTF8.GetBytes(value);
byte[] asciiBytes = Encoding.Convert(Encoding.UTF8,
Encoding.Unicode, utf8Bytes);
return Encoding.Unicode.GetString(asciiBytes);
}
...but it doesn''t work as desired. This just causes the pair of
encoded characters to be replaced to ''?'' characters.
TIA
C＃Learner< cs **** @ learner.here>写道：
C# Learner <cs****@learner.here> wrote:
我有一个字符串（System.String），它包含一些数据。这个数据是以UTF8格式编码的（即字符串中应该有单个''''字符的任何地方，将有两个字符，其中包含相当于该字符的
UTF8格式）。
如何解码这个UTF8编码的字符串？
I have a string (System.String) which holds some data. This data is
encoding in UTF8 (i.e. anywhere in the string where there should be a
single ''é'' character, there will be two characters holding the
equivalent of that character in the UTF8 format).
How can I decode this UTF8-encoded string?
请参阅我在microsoft.public.dotnet.framework中的回复。你的基本问题是混合二进制数据和字符数据。
见 http://www.pobox.com/~skeet/csharp/unicode.html
-
Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复小组，请不要给我发邮件
Please see my responses in microsoft.public.dotnet.framework. Your
basic problem is mixing up binary data and character data.
See http://www.pobox.com/~skeet/csharp/unicode.html
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Jon Skeet [C＃MVP]< sk *** @ pobox.com>写道：
Jon Skeet [C# MVP] <sk***@pobox.com> wrote:
C＃Learner< cs **** @ learner.here>写道：
C# Learner <cs****@learner.here> wrote:
我有一个字符串（System.String），它包含一些数据。这个数据是以UTF8格式编码的（即字符串中应该有单个''''字符的任何地方，将有两个字符，其中包含相当于该字符的
UTF8格式。
如何解码这个UTF8编码的字符串？
I have a string (System.String) which holds some data. This data is
encoding in UTF8 (i.e. anywhere in the string where there should be a
single ''é'' character, there will be two characters holding the
equivalent of that character in the UTF8 format).
How can I decode this UTF8-encoded string?
请参阅我在microsoft.public.dotnet.framework中的回复。你的基本问题是混合二进制数据和字符数据。
参见 http://www.pobox.com/~skeet/csharp/unicode.html
我真的我看不出我在哪里混淆任何东西。我
只是有一个UTF8格式的字符串。我只想解码它。
在.NET中不可能吗？我已经在Delphi中做到了这一点没有问题。
感谢您的耐心回复。
I really can''t see where I''m mixing up anything with anything. I
simply have a string in UTF8 format. I just want to decode it.
Is it not possible in .NET? I''ve done this in Delphi without problem.
Thanks for your patient replies.
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