list_dir = os.listdir(addr)
df_dir = pd.DataFrame(os.path.splitext(i) for i in list_dir)
display(df_dir)

today = datetime.date.today().strftime('%m月%d日')

# 筛选第1列包含today的行
display(pd.DataFrame(i for i in df_dir.values if today in i[0]))
display(df_dir[df_dir.iloc[:, 0].str.contains(today)])  # 整元素匹配, 用isin; 元素内字符匹配, str.contains