将 C# 字符串编码为 Javascript 字符串的注意事项
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Caveats Encoding a C# string to a Javascript string
提问by Machado
I'm trying to write a custom Javascript MVC3 Helper class foe my project, and one of the methods is supposed to escape C# strings to Javascript strings.
我正在尝试为我的项目编写一个自定义的 Javascript MVC3 Helper 类，其中一种方法应该将 C# 字符串转义为 Javascript 字符串。
I know C# strings are UTF-16 encoded, and Javascript strings also seem to be UTF-16. No problem here.
我知道 C# 字符串是UTF-16 编码的，而 Javascript 字符串似乎也是 UTF-16。这里没问题。
I know some characters like backslash, single quotes or double quotes must be backslash-escaped on Javascript so:
我知道一些字符，如反斜杠、单引号或双引号必须在 Javascript 上进行反斜杠转义，因此：
\ becomes \
' becomes \'
" becomes \"
Is there any other caveat I must be aware of before writing my conversion method ?
在编写我的转换方法之前，还有什么我必须注意的警告吗？
EDIT: Great answers so far, I'm adding some references from the answers in the question to help others in the future.
编辑：到目前为止，很好的答案，我正在从问题的答案中添加一些参考资料，以帮助将来的其他人。
Alex K. suggested using System.Web.HttpUtility.JavaScriptStringEncode, which I marked as the right answer for me, because I'm using .Net 4. But this function is not available to previous .Net versions, so I'm adding some other resources here:
Alex K. 建议使用System.Web.HttpUtility.JavaScriptStringEncode，我将其标记为正确答案，因为我使用的是 .Net 4。但此功能不适用于以前的 .Net 版本，因此我在这里添加了一些其他资源：
CR becomes \r // Javascript string cannot be broke into more than 1 line
LF becomes \n // Javascript string cannot be broke into more than 1 line
TAB becomes \t
Control characters must be Hex-Escaped
JP Richardsongave an interesting link informing that Javascript uses UCS-2, which is a subset of UTF-16, but how to encode this correctly is an entirely new question.
JP Richardson给出了一个有趣的链接，告知 Javascript 使用 UCS-2，它是 UTF-16 的一个子集，但如何正确编码它是一个全新的问题。
LukeH on the comments below reminded the CR, LF and TAB chars, and that reminded me of the control chars (BEEP, NULL, ACK, etc...).
LukeH 在下面的评论中提醒了 CR、LF 和 TAB 字符，这让我想起了控制字符（BEEP、NULL、ACK 等...）。
回答by Alex K.
(.net 4) You can;
(.net 4) 你可以；
System.Web.HttpUtility.JavaScriptStringEncode(@"aa\bb ""cc"" dd\tee", true);
==
"aa\bb \"cc\" dd\tee"
回答by JP Richardson
It's my understanding that you do have to be careful, as JavaScript is not UTF-16, rather, it's UCS-2 which I believe is a subset of UTF-16. What this means for you, is that any character that is represented than a higher code point of 2 bytes (0xFFFF) could give you problems in JavaScript.
我的理解是您必须小心，因为 JavaScript 不是 UTF-16，而是 UCS-2，我认为它是 UTF-16 的子集。这对您来说意味着，任何比 2 字节 (0xFFFF) 更高的代码点表示的字符都可能会给您带来 JavaScript 问题。
In summary, under the covers, the engine may use UTF-16, but it only exposes UCS-2 like methods.
总之，在幕后，引擎可能使用 UTF-16，但它只公开类似 UCS-2 的方法。
Great article on the issue: http://mathiasbynens.be/notes/javascript-encoding
关于这个问题的好文章：http: //mathiasbynens.be/notes/javascript-encoding
回答by Chris Gessler
Just use Microsoft.JScript.GlobalObject.escape
只需使用 Microsoft.JScript.GlobalObject.escape
Found it here: http://forums.asp.net/p/1308104/4468088.aspx/1?Re+C+equivalent+of+JavaScript+escape+
在这里找到：http: //forums.asp.net/p/1308104/4468088.aspx/1?Re+C+equivalent+of+JavaScript+escape+
回答by AndyBre
Instead of using JavaScriptStringEncode()method, you can encode server side using:
JavaScriptStringEncode()您可以使用以下方法对服务器端进行编码，而不是使用方法：
HttpUtility.UrlEncode()
When you need to read the encoded string client side, you have to call unescape()javascript function before using the string.
当您需要读取编码后的字符串客户端时，您必须unescape()在使用字符串之前调用javascript 函数。
