Description of C # static Constructor

Http://www.cnblogs.com/michaelxu/archive/2007/03/29/693401.html

 

Static constructor is a new feature of C #, which is rarely used. However, we need to use static variables when initializing them. This constructor belongs to a class rather than an instance. That is to say, this ConstructorExecuted only once. That is, creatingFirstAutomatically called by. net before the instance or reference any static members.

Class Simpleclass
{
// Static Constructor
Static Simpleclass ()
{
//
}
}

Pay attention to the following points when using static constructors:

1. The static constructor neither has an access modifier nor a parameter. Because it is called by. net, modifiers such as public and private are meaningless.

2. When the first class instance or any static member is referenced ,. net will automatically call the static constructor to initialize the class. That is to say, we cannot directly call the static constructor, so we cannot control when to execute the static constructor.

3. A class can have only one static constructor.

4. A non-parameter constructor can coexist with a static constructor. Although the parameter list is the same, one belongs to the class and the other belongs to the instance, so there is no conflict.

5. Run only once at most.

6. Static constructors cannot be inherited.

7. If no static constructor is written and the class contains static members with an initial value, the compiler automatically generates the default static constructor.