打印九九乘法表

用while循环打印九九乘法表

i=1
while i <=9:
    j = 1
    while j <=i:
        print(f"{j}*{i} = {j*i}\t", end=" ")
        j +=1
    i+=1
    print()

用for range()打印九九乘法表

for x in range(1, 10):
    for y in range(1, x+1):
        print(f"{y} * {x} = {x*y}\t", end=" ")
    print()