C# 构建十六进制表示法字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/284093/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
C# Build hexadecimal notation string
提问by humcfc
How do I build an escape sequence string in hexadecimal notation.
如何以十六进制表示法构建转义序列字符串。
Example:
例子：
string s = "\x1A"; // this will create the hex-value 1A or dec-value 26
I want to be able to build strings with hex-values between 00 to FF like this (in this example 1B)
我希望能够像这样构建十六进制值在 00 到 FF 之间的字符串（在本例中为 1B）
string s = "\x" + "1B"; // Unrecognized escape sequence
Maybe there's another way of making hexadecimal strings...
也许还有另一种制作十六进制字符串的方法......
采纳答案by FlySwat
You don't store hexadecimal values in strings.
您不在字符串中存储十六进制值。
You can, but it would just be that, a string, and would have to be cast to an integer or a byte to actually read its value.
您可以，但它只是一个字符串，并且必须转换为整数或字节才能实际读取其值。
You can assign a hexadecimal value as a literal to an int or a byte though:
您可以将十六进制值作为文字分配给 int 或字节：
Byte value = 0x0FF;
int value = 0x1B;
So, its easily possible to pass an hexadecimal literal into your string:
因此，很容易将十六进制文字传递到您的字符串中：
string foo = String.Format("{0} hex test", 0x0BB);
Which would create this string "126 hex test".
这将创建此字符串“126 hex test”。
But I don't think that's what you wanted?
但我不认为那是你想要的吗？
回答by Nicolas Repiquet
There's an '\u' escape code for hexadecimal 16 bitsunicode character codes.
十六进制16 位unicode 字符代码有一个 '\u' 转义码。
Console.WriteLine( "Look, I'm so happy : \u263A" );
回答by Jon Skeet
Please try to avoid the \xescape sequence. It's difficult to read because where it stops depends on the data. For instance, how much difference is there at a glance between these two strings?
请尽量避免\x转义序列。它很难阅读，因为它在哪里停止取决于数据。比如，这两个字符串乍一看有多大区别？
"\x9Good compiler"
"\x9Bad compiler"
In the former, the "\x9" is tab - the escape sequence stops there because 'G' is not a valid hex character. In the second string, "\x9Bad" is all an escape sequence, leaving you with some random Unicode character and " compiler".
在前者中，“\x9”是制表符 - 转义序列在那里停止，因为 'G' 不是有效的十六进制字符。在第二个字符串中，“\x9Bad”都是一个转义序列，留下一些随机的 Unicode 字符和“编译器”。
I suggest you use the \u escape sequence instead:
我建议您改用 \u 转义序列：
"\u0009Good compiler"
"\u0009Bad compiler"
(Of course for tab you'd use \tbut I hope you see what I mean...)
（当然对于你会使用的标签，\t但我希望你明白我的意思......）
This is somewhat aside from the original question of course, but that's been answered already :)
这当然与最初的问题有点不同，但这已经得到了回答:)
