苹果app store水军 In recent weeks, numerous companies have complained about Apple and its App Store practices. Microsoft, Facebook, the Wall Street Journal, Basecamp, and Epic games are all on the list.
1.多态中的成员变量/**
* 多态 动态绑定
*
* @author wql
*
*/
class Fu {
int num = 3;
}
class Zi extends Fu {
int num = 4; //这里并不是覆盖，变量不存在覆盖
}
public class Demo {
public static void main(String[
