本博客会不断完善，记录python小功能。
1. 合并两个字典
# in Python 3.5+
>>> x = {‘a‘: 1, ‘b‘: 2}
>>> y = {‘b‘: 3, ‘c‘: 4}
>>> z = {**x, **y}
>>> z
{‘c‘: 4, ‘a‘: 1, ‘b‘: 3}
# Python 2.x
>>> z = dict(x, **y)
>>> z
{‘a‘: 1, ‘c‘: 4, ‘b‘: 3}
原文：https://www.cnblogs.com/carey-he/p/11188738.html