差异/你和&＃ [英] difference /u and &#
问题描述
我从数据库收到一个utf8字符，例如&＃30000（日语
字符，样式：& #XXXXX） 。
如何在我的应用程序中可视化日文字符？我在类System.Text.Encoding中找到了
，但输入看起来像是\ uXXXX。我不知道b $ b知道该怎么做。
谢谢你，
巴特
Hi,
I receive an utf8 character from a database, like 田 (Japanese
Character, style: &#XXXXX).
How can I visualize the Japanese character on my application? I have found
the class System.Text.Encoding, but the input looks like \uXXXX. I don''t
know how to do.
Thank you,
Bart
推荐答案
Bart< ba ** @ bart.it>写道：
Bart <ba**@bart.it> wrote:
我从数据库中收到一个utf8字符，如&＃30000（日语
字符，样式：& #XXXXX）。
我如何可视化日语我的申请人物？我找到了类System.Text.Encoding，但输入看起来像\ uXXXX。我不知道该怎么做。
I receive an utf8 character from a database, like 田 (Japanese
Character, style: &#XXXXX).
How can I visualize the Japanese character on my application? I have found
the class System.Text.Encoding, but the input looks like \uXXXX. I don''t
know how to do.
我不完全确定你的意思是输入看起来像\ uXXXX ;。
你的意思是它作为带有\uXXXX的字符串存储在数据库中in？
你确定*关于那个，或者只是调试器是什么？
显示？ （尝试将其写入控制台。）
-
Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复该团体，请不要给我发邮件
I''m not entirely sure what you mean by "the input looks like \uXXXX".
Do you mean it''s stored in the database as a string with "\uXXXX" in?
Are you *sure* about that, or is that just what the debugger is
showing? (Try writing it out to the console.)
--
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>在消息中写道
新闻：MP ************************ @ msnews.microsoft.c om ...
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...
Bart< ba ** @ bart.it>写道：
Bart <ba**@bart.it> wrote:
我从数据库中收到一个utf8字符，如&＃30000（日语
字符，样式：& #XXXXX）。
我如何可视化日语我的申请人物？我有
找到类System.Text.Encoding，但输入看起来像\uXXXX。我不知道该怎么做。
我不完全确定你的意思是输入看起来像\ uXXXX。
你的意思是'' s作为带有\uXXXX的字符串存储在数据库中in？
你确定*那个，或者只是调试器显示的内容？ （尝试将其写入控制台。）
I receive an utf8 character from a database, like 田 (Japanese
Character, style: &#XXXXX).
How can I visualize the Japanese character on my application? I have found the class System.Text.Encoding, but the input looks like \uXXXX. I don''t
know how to do.
I''m not entirely sure what you mean by "the input looks like \uXXXX".
Do you mean it''s stored in the database as a string with "\uXXXX" in?
Are you *sure* about that, or is that just what the debugger is
showing? (Try writing it out to the console.)
我在MSDN Library上看过这个例子：
UTF8Encoding utf8 = new UTF8Encoding（）;
UTF8Encoding utf8ThrowException = new UTF8Encoding（false，true）;
//此数组连续包含两个高代理项（\ uD801，
\ uD802）。
//高代理人应该跟一个低代理人。
Char [] chars = new Char [] {''''，''b''，''c''，''\ uD801''，''\ uD802''，''d''};
这意味着我必须将字符串写为\uXXXX，但在我的数据库中，
文件存储（utf8）为& #XXXXX。我不明白为什么在这个例子中，
utf8字符具有该格式，并且在我的数据库中有一个不同的字符，即使
都是utf8编码的。
- Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复小组，请不要给我发邮件
I have looked this example at MSDN Library:
UTF8Encoding utf8 = new UTF8Encoding();
UTF8Encoding utf8ThrowException = new UTF8Encoding(false, true);
// This array contains two high surrogates in a row (\uD801,
\uD802).
// A high surrogate should be followed by a low surrogate.
Char[] chars = new Char[] {''a'', ''b'', ''c'', ''\uD801'', ''\uD802'', ''d''};
It means that I have to write the strings as \uXXXX, but in my database the
file are stored (utf8) as &#XXXXX. I don''t understand why in the example an
utf8 character has that format and in my database a different one even if
are both utf8 encoded.
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Bart< ba ** @ bart.it>写道：
Bart <ba**@bart.it> wrote:
" Jon Skeet [C＃MVP]" < SK *** @ pobox.com>在消息中写道
新闻：MP ************************ @ msnews.microsoft.c om ...
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...
Bart< ba ** @ bart.it>写道：
Bart <ba**@bart.it> wrote:
我从数据库中收到一个utf8字符，如&＃30000（日语
字符，样式：& #XXXXX）。
我如何可视化日语我的申请人物？我找到了类System.Text.Encoding，但输入看起来像\uXXXX。我不知道该怎么做。
I receive an utf8 character from a database, like 田 (Japanese
Character, style: &#XXXXX).
How can I visualize the Japanese character on my application? I have found the class System.Text.Encoding, but the input looks like \uXXXX. I don''t
know how to do.
我不完全确定你的意思是输入看起来像\ uXXXX。
I''m not entirely sure what you mean by "the input looks like \uXXXX".
Do you mean it''s stored in the database as a string with "\uXXXX" in?
Are you *sure* about that, or is that just what the debugger is
showing? (Try writing it out to the console.)
我在MSDN Library上看过这个例子：
UTF8Encoding utf8 = new UTF8Encoding（）;
UTF8Encoding utf8ThrowException = new UTF8Encoding（false，true）;
//此数组连续包含两个高代理项（\ uD801，
\ uD802）。
/ /一个高代理人应该跟一个低代理人。
Char [] chars = new Char [] {''a''，'b''，'c''，''\ uD801' '，'''\ uD802''，''d''};
这意味着我必须将字符串写为\uXXXX，但在我的数据库中
文件是存储（utf8）as& #XXXXX。我不明白为什么在示例中
utf8字符具有该格式，并且在我的数据库中有一个不同的字符，即使
都是utf8编码。
I have looked this example at MSDN Library:
UTF8Encoding utf8 = new UTF8Encoding();
UTF8Encoding utf8ThrowException = new UTF8Encoding(false, true);
// This array contains two high surrogates in a row (\uD801,
\uD802).
// A high surrogate should be followed by a low surrogate.
Char[] chars = new Char[] {''a'', ''b'', ''c'', ''\uD801'', ''\uD802'', ''d''};
It means that I have to write the strings as \uXXXX, but in my database the
file are stored (utf8) as &#XXXXX. I don''t understand why in the example an
utf8 character has that format and in my database a different one even if
are both utf8 encoded.
我不确定你的意思是存储（utf8）as& #XXXXX。你的意思是
，实际的人物''&'''''''等在数据库中 - 或者它是b / b
就是这样的在显示它们时会看到非ASCII字符
在一个SQL查询执行环境中？
0xffff以上的Unicode字符必须存储在
.NET中的代理形式是.NET在内部使用UTF-16，有效地是
- 每个字符是16位，这不足以覆盖整个
Unicode。
当你在C＃程序中写一个字符串时，你*可以*使用
\UXXXXXXXX相反（注意大写U）。只支持最大值为0x10ffff的值为
，因此前两个X将始终为0.
-
Jon Skeet - < sk *** @ pobox.com>
http：// www .pobox.com / ~siget
如果回复小组，请不要给我发邮件
I''m not sure what you mean by "stored (utf8) as &#XXXXX". Do you mean
that the actual characters ''&'' ''#'' etc are in the database - or is it
just that that''s how you see non-ASCII characters when displaying them
in (say) a SQL query execution environment?
The reason Unicode characters above 0xffff have to be stored in
surrogate form in .NET is that .NET uses UTF-16 internally, effectively
- each character is 16 bits, which isn''t enough to cover the whole of
Unicode.
When you write a string in a C# program, however, you *can* use
\UXXXXXXXX instead (note the capital U). Only values up to 0x10ffff are
supported, so the first two Xs will always be 0.
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
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