c# 从静态函数中打印类名
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c# print the class name from within a static function
提问by TK.
Is it possible to print the class name from within a static function?
是否可以从静态函数中打印类名？
e.g ...
例如...
public class foo
{
static void printName()
{
// Print the class name e.g. foo
}
}
采纳答案by Jamezor
You have three options to get the type (and therefore the name) of YourClassthat work in a static function:
您有三个选项可以YourClass在静态函数中获取该工作的类型（以及名称）：
typeof(YourClass)- fast (0.043 microseconds)MethodBase.GetCurrentMethod().DeclaringType- slow (2.3 microseconds)new StackFrame().GetMethod().DeclaringType- slowest (17.2 microseconds)
typeof(YourClass)- 快速（0.043 微秒）MethodBase.GetCurrentMethod().DeclaringType- 慢（2.3 微秒）new StackFrame().GetMethod().DeclaringType- 最慢（17.2 微秒）
If using typeof(YourClass)is not desirable, then MethodBase.GetCurrentMethod().DeclaringTypeis definitely the best option.
如果使用typeof(YourClass)不是可取的，那么MethodBase.GetCurrentMethod().DeclaringType绝对是最好的选择。
回答by Anton Gogolev
StackTraceclass can do that.
StackTrace类可以做到这一点。
回答by Matt Hamilton
Console.WriteLine(new StackFrame().GetMethod().DeclaringType);
回答by Marc Gravell
While the StackTrace answers are correct, they do have an overhead. If you simply want safety against changing the name, consider typeof(foo).Name. Since static methods can't be virtual, this should usually be fine.
虽然 StackTrace 答案是正确的，但它们确实有开销。如果您只是想安全地避免更改名称，请考虑typeof(foo).Name. 由于静态方法不能是虚拟的，这通常应该没问题。
回答by Kent Boogaart
A (cleaner, IMO) alternative (still slow as hell and I would cringe if I saw this in a production code base):
一个（更干净的，IMO）替代方案（仍然很慢，如果我在生产代码库中看到这个我会畏缩）：
Console.WriteLine(MethodBase.GetCurrentMethod().DeclaringType);
By the way, if you're doing this for logging, some logging frameworks (such as log4net) have the ability built in. And yes, they warn you in the docs that it's a potential performance nightmare.
顺便说一句，如果您这样做是为了记录日志，一些日志框架（例如 log4net）具有内置的功能。是的，他们在文档中警告您这是一个潜在的性能噩梦。
回答by Vilx-
Since static methods cannot be inherited the class name will be known to you when you write the method. Why not just hardcode it?
由于静态方法不能被继承，当您编写方法时，您将知道类名。为什么不直接硬编码呢？
回答by Jamezor
Since C# 6.0 there exists an even simpler and faster way to get a type name as a string without typing a string literal in your code, using the nameofkeyword:
从 C# 6.0 开始，存在一种更简单、更快的方法来获取类型名称作为字符串，而无需在代码中键入字符串文字，使用nameof关键字：
public class Foo
{
static void PrintName()
{
string className = nameof(Foo);
...
}
}
