public class Main {
public static void main(String[] args) {
// TODO: 给Person类增加一个静态字段count和静态方法getCount，统计实例的个数
Person p1 = new Person("小明");
System.out.println(Person.getCount()); // 1
Person p2 = new Person("小红");
System.out.println(Person.getCount()); // 2
Person p3 = new Person("小军");
System.out.println(Person.getCount()); // 3
}
}

public class Person {
String name;
public static int count=0;
public static int getCount(){
return count;
}

public Person(String name) {
this.name = name;
count++;
}
}