//i为行数,j为空格数,k为*数,空心图形为除了每行的//头和尾都是空格的.所以用if语句判断是否为头尾,是就//打印*不是就空格public class kk{ public static void main(String[] args) { for (int i = 1 ; i <= 10 ; i++) { for (int j = 9 ; j >= i ; j--) { System.out.print(" "); } for (int k = 1 ; k <= i ; k++) { if (k ==