@Test
  public void shengdanshu(){
    //葉子層
    int level = 10;
    //根層
    int rootLevel = 2;
    int spaceNum = level - 1;

    //畫葉子
    // 為什么從1開始  不管了就是任性
    for (int i = 1; i <= level; i++) {
      spaceNum--;
      for (int g = 0; g <= spaceNum; g++) {
        System.out.print(" ");
      }
      for (int j = 1; j <= ((i * 2) -1); j++) {
        System.out.print("*");
      }

      System.out.print("\n");
    }
 System.out.println("  ❤圣誕節(jié)快樂❤");
    //畫根
    for (int i = 1; i <= rootLevel; i++) {
      for (int g = 1; g < level; g++) {
        System.out.print(" ");
      }
      System.out.print("*\n");
    }
 
  }