RateLimiter 源码分析

private static RateLimiter one=RateLimiter.create(2);//每秒2个  private static RateLimiter two=RateLimiter.create(2);//每秒2个  private RateLimitUtil(){};  public static void acquire(RateLimiter r,int num){    double time =r.acquire(num);    System.out.println("wait time="+time);  }  public static void main(String[] args) throws InterruptedException {    acquire(one,1);    acquire(one,1);    acquire(one,1);    System.out.println("-----");    acquire(two,10);    acquire(two,1);  }