split

分割字符串
split()：拆分字符串。通过指定分隔符对字符串进行切片，并返回分割后的字符串列表

admin_report_link = "D:/test/data_expand/"
# admin_report_link = "D:/test/data_expand/theme_report_d15a99d4-c549-4fb6-add9-071279a42187.pdf"
report_file_name = admin_report_link.split(".")
print(report_file_name)
print(report_file_name[-1])

结果：

['D:/test/data_expand/']
D:/test/data_expand/

os.path.splitext

返回文件名和扩展名分开

file_path = "D:/test/data_expand/"
filename, extension = os.path.splitext(file_path)
print("filename:", filename)  # D:/test/data_expand/
print("extension:", extension, type(extension), len(extension))  # 空文件后缀file_path = "D:/test/data_expand/theme_report_d15a99d4-c549-4fb6-add9-071279a42187.pdf"
filename, extension = os.path.splitext(file_path)
print("filename:", filename)  # D:/test/data_expand/
print("extension:", extension, type(extension), len(extension))  # 空文件后缀

结果：

filename: D:/test/data_expand/
extension:  <class 'str'> 0
filename: D:/test/data_expand/theme_report_d15a99d4-c549-4fb6-add9-071279a42187
extension: .pdf <class 'str'> 4

os.path.split

返回文件名和扩展名分开

file_path = "D:/test/data_expand/"
filename, extension = os.path.split(file_path)
print("filename:", filename)  # D:/test/data_expand/
print("extension:", extension, type(extension), len(extension))  # 空文件后缀
file_path = "D:/test/data_expand/theme_report_d15a99d4-c549-4fb6-add9-071279a42187.pdf"
filename, extension = os.path.split(file_path)
print("filename:", filename)  # D:/test/data_expand/
print("extension:", extension, type(extension), len(extension))  # 空文件后缀

结果：

filename: D:/test/data_expand
extension:  <class 'str'> 0
filename: D:/test/data_expand
extension: theme_report_d15a99d4-c549-4fb6-add9-071279a42187.pdf <class 'str'> 53