语句练习2

 1         double num1=0.08;
 2         int i=1;
 3         while(num1/1000<=8848.13)
 4         {
 5             num1*=2;
 6             System.out.println("第"+i+"次对折的厚度："+num1/1000+"米");
 7             i++;
 8             
 9         }
10         System.out.println("一共对折"+i+"次！");

1         int jx=1;
2         for(int j=1;j<=5;j++){
3             jx*=j;
4         }
5         System.out.println("5!="+jx);

        double res=0;
        for(int k=1;k<=20;k++){
            double jc=1;
            for(int m=1;m<=k;m++){
                jc*=m;
            }
            res+=1/jc;
            System.out.println(k+"!="+jc);
            System.out.println(res);
        }
        System.out.println("1+1/2!+1/3!+1/4!+...1/20!="+res);