用python编写程序,打印九九乘法表。要求输出九九乘法表的各种显示效果(上三角、下三角、

正三角等等)。

Sure, here's the Python code to print the times table:

for i in range(1, 10):
    for j in range(1, i + 1):
        print(str(i) + " x " + str(j) + " = " + str(i * j), end="\t")
    print()

To print different display effects, you can use different formatting techniques in the print statement. For example, to print an upper triangle:

for i in range(1, 10):
    for j in range(i, 10):
        print(str(i) + " x " + str(j) + " = " + str(i * j), end="\t")
    print()

Hope that helps!