'''
打印99乘法表
'''# 正向排序
def zhengxv(num:int):for i in range(1,num+1):for j in range(1,i+1):if j*i > 9:print("{}x{}={}".format(j, i, j*i),end=" ")else:print("{}x{}={} ".format(j, i, j * i), end=" ")print(end="\n")# 反向排序
def fanxv(num:int):for m in range(num,0,-1):for n in range(m, 0, -1):if m * n > 9:print("{}x{}={}".format(m, n, m * n), end=" ")else:print("{}x{}={} ".format(m, n, m * n), end=" ")print(end="\n")num = int(input("请输入乘法表位数:"))
print("1 正向输出\n2 反向输出")
output_type = int(input("输选择正向/反向输出:"))
if output_type == 1:zhengxv(num)
elif output_type == 2:fanxv(num)
else:print("Error!")