打印九九乘法表格，whlie , for in

用while打印九九乘法表
i=1
while i<=9:
    j=1
    while j<=i:
        print('%d*%d=%2d       ' % (i, j, i * j), end='')
        j+=1
    i+=1
    print()

用for   in 打印九九乘法表

for i in range(1,10):
    for j in range(1,i + 1):
        # print('%d*%d=%2d   ' % (i, j, i * j), end='')
        print('{}*{}={}'.format(j,i,i*j) ,end=' ' )

    print()