代码

j = 1
while j <= 9:
    i = 1
    while i <= j:
        # 格式化输出，每行的个数与行号相同
        print(f'{i}*{j}={i*j}',end='\t')
        i += 1
    # 输出一行后换行显示
    print()
    j += 1