Pedro_json

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题解(1)

/ 注册

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题解 | #禁止重复注册#

current_users = ['Niuniu', 'Niumei', 'GURR', 'LOLO'] # 创建一个列表current_users new_users = ['GurR','Niu ...

Python3

2022-07-12

0 236

题解 | #统计每个用户的平均刷题数#

select university, difficult_level, round((count(qpd.result) / count(distinct qpd.device_id)), 4) avg_answer_cnt from question_practice_detail...

Mysql

2021-12-29

5 824