spark99乘法表倒叙

spark99乘法表倒序是指将99乘法表按照倒序的方式输出。具体的实现可以使用循环结构来完成，从99开始递减到1，每次递减一个数，然后再内层循环中从当前数递减到1，输出每一行的乘法结果。

以下是spark99乘法表倒序的实现代码：

for i in range(9, 0, -1):
    for j in range(i, 0, -1):
        print(f"{i} * {j} = {i*j}", end="\t")
    print()

运行以上代码，即可得到spark99乘法表倒序的输出结果：

9 * 9 = 81	9 * 8 = 72	9 * 7 = 63	9 * 6 = 54	9 * 5 = 45	9 * 4 = 36	9 * 3 = 27	9 * 2 = 18	9 * 1 = 9	
8 * 8 = 64	8 * 7 = 56	8 * 6 = 48	8 * 5 = 40	8 * 4 = 32	8 * 3 = 24	8 * 2 = 16	8 * 1 = 8	
7 * 7 = 49	7 * 6 = 42	7 * 5 = 35	7 * 4 = 28	7 * 3 = 21	7 * 2 = 14	7 * 1 = 7	
6 * 6 = 36	6 * 5 = 30	6 * 4 = 24	6 * 3 = 18	6 * 2 = 12	6 * 1 = 6	
5 * 5 = 25	5 * 4 = 20	5 * 3 = 15	5 * 2 = 10	5 * 1 = 5	
4 * 4 = 16	4 * 3 = 12	4 * 2 = 8	4 * 1 = 4	
3 * 3 = 9	3 * 2 = 6	3 * 1 = 3	
2 * 2 = 4	2 * 1 = 2	
1 * 1 = 1