All types have an accessibility modifier that governs their accessibility from other types . the following table describes the type accessibilities supported by the runtime 所有类型都有一个可访问性修饰符,控制从其他类型对它们的可访问性。
Destructors cannot have parameters , they cannot have accessibility modifiers , and they cannot be invoked explicitly . the destructor for an instance is invoked automatically during garbage collection 析构函数不能有参数,不能有访问级别修饰符,不能被显式调用.实例的析构函数在垃圾收集时自动调用