c# - 关于 [ThreadStatic()] c#

Question

[ThreadStatic()]是什么意思

我得到了一段代码，我找到了[ThreadStatic()]在那里使用是什么意思....何时使用[ThreadStatic()]

public class Context
{
[ThreadStatic()]
private static Context _Context = null;

private HttpContext _HttpContext = null;

public Context()
{
    _HttpContext = HttpContext.Current;
}

public static Context Current
{
    if(_Context == null || 
       _HttpContext != _HttpContext.Current)
    {
        _Context = new Context();
    }
    return _Context;
}
}

Answer 1

来自 MSDN :

Indicates that the value of a static field is unique for each thread.

阅读这些:

• A tale of two techniques: The [ThreadStatic] Attribute and System.Web.HttpContext.Current.Items
• CallContext vs ThreadStatic
• MSDN Blog: Are you familiar with [ThreadStatic]?
• How well do you understand ThreadStatic?