题解 | #统一最后刷题日期的格式#
统一最后刷题日期的格式
https://www.nowcoder.com/practice/348b2f28a75f4ef2ac86db771c2563d3
import pandas as pd
# 从 CSV 文件中读取数据并设置索引
df = pd.read_csv("Nowcoder.csv",dtype=object)
# 替换 Last_submission_time 列中的前两个斜杠
df["Last_submission_time"] = df["Last_submission_time"].str.replace("/","-",n=2)
print(df[["Nowcoder_ID", "Level", "Last_submission_time"]])
字符串替换
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