静态内部类无法访问外部类的实例成员

/** * Description: * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author  Yeeku.H.Lee [e-mail] * @version  1.0 */public class TestStaticInnerClass{private int prop1 = 5;private static int prop2 = 9;static class StaticInnerClass{private static int age;public void accessOuterProp(){//下面代码出现错误：静态内部类无法访问外部类的实例成员System.out.println(prop1);//下面代码正常System.out.println(prop2);}}}/*TestStaticInnerClass.java:22: 错误: 无法从静态上下文中引用非静态 变量 prop1                        System.out.println(prop1);                                           ^1 个错误请按任意键继续. . .*/