Python语法很奇怪啊

[vibbow]

food = ["spam", "spam", "eggs", "sausages", "spam"]
print food[2:4]

为什么只打印 eggs 和 sausages 呢？
难道不应该是index从2到4么？

[clino]

@falconeye
|a|b|c|d|e|
0 1 2 3 4 5
-5-4-3-2-1 0
2指的是b后面那一刀,-1指的是d后面那一刀,所以还是 ['c', 'd']

[est]

@clino 如果切片是复数是不是可以突破一次元的天际了？

'abcdef'[1:2j]

[SkyFvcker]

LZ孤陋寡闻被各楼鄙视。。。

[yy77]

irb(main):005:0> food = ["1","2","3","4","5"][2..4]
=> ["3", "4", "5"]

[sandhat]

一个关于前闭后开的传说~