小笨蛋看过来 | #牛客网每日正确与错误的答题次数#
牛客网每日正确与错误的答题次数
https://www.nowcoder.com/practice/bd74b186d5954eb69c00ee804cebe364
import pandas as pd
df = pd.read_csv('nowcoder.csv', sep=',')
df['year-month-day'] = pd.to_datetime(df['date']).dt.date # 如果df表中没有'year-month-day'字段列，则新建一个该字段列
num = df.groupby(['result','year-month-day'])['result'].count() # 分组聚合运算，两个字段作为分组依据，对对应结果进行聚合运算
print(num)
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