python for循环控制步长

for i in range(开始/左边界, 结束/右边界, 步长):
    print i

for i in range(1, 10, 2):
    print i

for (i=1;i<=10;i+=2)
1
3
5
7
9
[Finished in 0.4s]

for i in range(0,17566662,1000000):
    pass