sv——static關鍵字

static class property

 

如果變量需要在不同的對象中共享，那麼可以把這個變成定義成靜態變量。

靜態變量在聲明對象句柄的時候就分配內存空間。

The static class properties can be used without creating an object of that type.

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class Packet ; static integer fileID = $fopen( "data", "r" ); Packet p; c = $fgetc( p.fileID );

　　

static class method

 

　　A static method has no access to non-static members (class properties or methods), but it can directly access static class properties or call static methods of the same class.

　　Access to non-static members or to the special this handle within the body of a static method is illegal and results in a compiler error.

　　Static methods cannot be virtual.