所以我用Python写了一个简单的二叉树,遇到了[...]
我不相信这与Ellipsis对象有关,它似乎与无限循环有关(由于Python的浅拷贝？).这个无限循环的来源以及为什么它在被访问时扩展时不会被扩展是我完全迷失的东西
>>> a
[[[[[], [], 8, 3], [[], [], 3, 2], 6, 3], [], 1, 4], [[], [], -4, 2], 0, 0]
>>> Keys(a)#With a+b
[0, 1, 6, 8, 3, -4]
>>> Keys(a)#With [a,b]
[8, [...], [...], 3, [...], [...], 6, [...], [...], 1, [...], [...], -4, [...], [...], 0, [...], [...]]
>>> Keys(a)[1]#??
[8, [...], [...], 3, [...], [...], 6, [...], [...], 1, [...], [...], -4, [...], [...], 0, [...], [...], 8, [...], [...], 3, [...], [...], 6, …