对于Python 2.7.x
inv_map = {v: k for k, v in my_map.iteritems()}
对于Python 3+:
inv_map = {v: k for k, v in my_map.items()}
Python-反转/反转字典映射
对于Python 2.7.x
inv_map = {v: k for k, v in my_map.iteritems()}
对于Python 3+:
inv_map = {v: k for k, v in my_map.items()}