2016/1/6 输出菱形 while语句计算阶乘分数之和

 public class LingXing {

     public static void main(String[] args) {
         //打印菱形
         for (int x=1;x<6;x++){
             for(int p=x;p<5;p++){
                 System.out.print(" ");
             }
             for(int y=0;y<x;y++){
                 System.out.print("* ");
             }

             System.out.println();
         }
         for (int m=5;m>0;m--){
             for(int p=m;p<=5;p++){
                 System.out.print(" ");
             }
             for (int n=1;n<m;n++){
                 System.out.print("* ");
             }
             System.out.println();
             }

 double t=1;
         double sum=0;
         double d=1;

         while (t<=20){

         d*=t;
         sum+=1/d;
         t++;
             System.out.println(1/d);
         }
             System.out.println("1+1/2!+...+1/20!="+sum);
         }

     }