DESKTOP-QUF3J7K_20200912-柴宁宁

问题：

public class Penson {

    private String name = "Penson";
    int age = 100;
    
}
public class Child extends Penson{
    
    public String grade;
    
    public static void main(String[] args) {
        
        Penson p = new Child();
        System.out.println( p.name);//出错
    }

}

吐槽：

可以感受空调了