Question

我有两个列表......一个是广告公司，另一个是他们的客户......我希望有一个字典格式的输出，向我展示他们所服务的所有客户的广告公司。

{agency:{company1, company2 etc etc}}

Advertising Agency  Company
WPP Alienware
OMNICOM Alleghany Corporation
XYZ Allegheny Technologies
MEDIACOM    Allegis Group
XYZ Allen Organ Company
MEDIACOM    Allergan
WPP Alliance Rubber Company
OMNICOM Alliant Energy
XYZ Alliant Techsystems
MEDIACOM    Allied Insurance
WPP Allison Transmission
OMNICOM Allstate
XYZ Ally Financial
MEDIACOM    Aloha Air Cargo

Answer 1

一种简单的方法是使用collections.defaultdict：

answer = defaultdict(set)
for agency, company in zip(agencies, companies):
    answer[agency].add(company)

从两个列表公司生成字典

1 个答案: