python dict 字典

countries = ['China', 'Japan', 'North Korea', 'South Korea', 'Taiwan', 'Thailand']

capitals = ['Beijing', 'Tokyo', 'Pyongyang', 'Seoul', 'Taipei', 'Bangkok']

#將list合併後轉成字典

d = dict(zip(countries,capitals))

#增加

d["United States"] = "Washington D.C."

#刪除

del d["Thailand"]

建立新字典，將舊字典的 key,value互換

new_dict = {}

for key,value in d.items():

    new_dict[value]=key

修改

new_dict["Washington D.C."] = "US"