DataFrame 筛选某列的数据

# 筛选某列包含A或B的数据
filtered_df = df[df['column_name'].str.contains('A|B')]
# 筛选某列包含A和B的数据，且忽略大小写
filtered_df = df[df['column_name'].str.contains('A', case=False) & df['column_name'].str.contains('B', case=False)]