题解 | #统计职能部分运动会某项目的报名信息#
统计职能部分运动会某项目的报名信息
https://www.nowcoder.com/practice/607359f8e09f4128bb90bb28a08d42ca
模拟 数据
signup.csv
employee_id,name,sex,department,item_id NC001,liming,f,functional,N100 NC002,zhangsan,f,functional,N101 NC003,sunli,m,functional,N103 NC004,lina,m,functional,N103 NC005,wanger,m,technology,N101 NC006,shenteng,m,technology,N100 NC007,mali,f,technology,N102 NC008,reba,f,technology,N102 NC009,ailun,m,technology,N102 NC010,changyuan,m,technology,N102 NC011,geyou,m,technology,N103 NC012,cls,f,technology,N103
items.csv
item_id,item_name,location N100,athletics,area01 N101,longJump,area02 N102,highJump,area03 N103,javelin,area04 N104,pingPong,area05 N105,relayRace,area06
实现代码
import pandas as pd
signup = pd.read_csv('signup.csv')
items = pd.read_csv('items.csv')
df_all = pd.merge(signup, items,
how='left',
left_on=signup['item_id'],
right_on=items['item_id'])
print(df_all.query(" department == 'functional' & item_name == 'javelin'").loc[:,
['employee_id', 'name', 'sex']].reset_index(drop=True))
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