注明：有时候需要一个固定长度的list，然后我找的时候虽然网上有一些内容，但都不是我想要的，于是我就自己简单的写了一个。以作自己不时之需，同时分享出来，大家一起讨论，不喜勿喷，谢谢！

1、直接上代码(固定 长度为10的list，长度可以自己更改)

b = range(10,30,1) #生成一个10~30的list

a = [] #定义一个空列表

for i in b:

if len(a) == 10: #这里的10为你想要固定长度list的长度

a.pop(0) #删除list a 中的第一个元素

a.append(i) #添加list a 中的最后一个元素

else:

a.append(i)

print(a) #打印结果

2、直接上运行结果

[10]

[10, 11]

[10, 11, 12]

[10, 11, 12, 13]

[10, 11, 12, 13, 14]

[10, 11, 12, 13, 14, 15]

[10, 11, 12, 13, 14, 15, 16]

[10, 11, 12, 13, 14, 15, 16, 17]

[10, 11, 12, 13, 14, 15, 16, 17, 18]

[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]

[11, 12, 13, 14, 15, 16, 17, 18, 19, 20]

[12, 13, 14, 15, 16, 17, 18, 19, 20, 21]

[13, 14, 15, 16, 17, 18, 19, 20, 21, 22]

[14, 15, 16, 17, 18, 19, 20, 21, 22, 23]

[15, 16, 17, 18, 19, 20, 21, 22, 23, 24]

[16, 17, 18, 19, 20, 21, 22, 23, 24, 25]

[17, 18, 19, 20, 21, 22, 23, 24, 25, 26]

[18, 19, 20, 21, 22, 23, 24, 25, 26, 27]

[19, 20, 21, 22, 23, 24, 25, 26, 27, 28]

[20, 21, 22, 23, 24, 25, 26, 27, 28, 29]