为什么method 需要传对象过去？否则不能调用t.nume

Question

class Work {

    static int num = 3;
    public static void main(String[] args) {

        Work t = new Work();
        t.num = 5;
        method(t);
        System.out.println(t.num);
        System.out.println(num);

    }
    public static void method(Work t){
        t.num = 6;
    }
}

Answer 1

 因为静态成员不能直接访问非静态成员，你可以这么写，不需要传 

class Work {
    static int num = 3;
    public static void main(String[] args) {

        Work t = new Work();
        t.num = 5;
        t.method();
        System.out.println(t.num);
        System.out.println(num);

    }
    public void method(){
        t.num = 6;
    }
}