题解 | #牛客网的每日练题量#
牛客网的每日练题量
https://www.nowcoder.com/practice/c5307933102d47c6895679bc62c9e5a9
import pandas as pd
df = pd.read_csv("nowcoder.csv")
print(df["date"].groupby(df["date"]).count())
# print(df.groupby(df["date"])["date"].count()) 方法二
牛客网的每日练题量
https://www.nowcoder.com/practice/c5307933102d47c6895679bc62c9e5a9
import pandas as pd
df = pd.read_csv("nowcoder.csv")
print(df["date"].groupby(df["date"]).count())
# print(df.groupby(df["date"])["date"].count()) 方法二
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