class RaceCar {
    private static int count = 0;
    private int carNo;
    private String driverName;
    public RaceCar(int carNo, String driverName) {
        this.carNo = carNo;
        this.driverName = driverName;
        count++;
    }
    public String toString() {
        return String.format("carNo:%d, driverName:%s", carNo, driverName);
    }
    public static int getCount() {return count;}

    public static void main(String[] args) {
        RaceCar[] rc = new RaceCar((int)(Math.random()*100 + 1));
        for (int i=0; i<rc.length; i++) {
            rc[i] = new RaceCar(i+1, "driver-"+(i+1));
        }
        for (RaceCar c : rc) {
            System.out.printf("赛车信息：%s\n", c.toString());
        }
        System.out.printf("赛车总数：%d\n", getCount());
    }
}

------解决方案--------------------
新人来看 来学习的 不回答

------解决方案--------------------
public class RaceCar {
	private int carNo;
	private String driverName;
	private static int count=0;
	public static int getCount(){
		return count++;
	}
	public RaceCar(int carNo, String driverName,int count) {
		super();
		this.carNo = carNo;
		this.driverName = driverName;
		this.count = this.getCount();
	}
	@Override
	public String toString() {
		return "赛车编号："+this.carNo+",车手名："+this.driverName+",当前车数"+this.count;
	}
	public static void main(String[] args) {
		RaceCar r1 = new RaceCar(132, "zhangsan",RaceCar.getCount());
		RaceCar r2 = new RaceCar(456, "zhangsan",RaceCar.getCount());
		RaceCar r3 = new RaceCar(457, "zhangsan",RaceCar.getCount());
		RaceCar [] r ={r1,r2,r3};
		for(int i=0;i<r.length;i++){
			System.out.println(r[i]);
		}
	}
}

------解决方案--------------------
public class RaceCar{
	private Integer carNo;
	private String driverName;
	private static int count=0;
public RaceCar(Integer carNo,String driverName){
	this.carNo=carNo;
	this.driverName=driverName;
	count++;