java中的double类型，结果很有意思哦

public class TestDouble{
 public static void main(String[] args){
  double d1 = 100.1000;
  System.out.println(d1);
  double d2 = 1001/10;
  System.out.println(d2);
  System.out.println(d1==d2);
  System.out.println(123.3/100);
  }
 }

输出结果：100.1

               100.0

                false

               1.2329999999999999