如何检测文件是否包含Unix换行符(\n)或Windows换行符(\ r \n)？

import re

def check_newline_style(file_path):
    with open(file_path, 'rb') as file:
        content = file.read()

    unix_newlines = re.findall(b'\n', content)
    windows_newlines = re.findall(b'\r\n', content)

    if unix_newlines and not windows_newlines:
        return "Unix换行符（\n）"
    elif windows_newlines and not unix_newlines:
        return "Windows换行符（\r\n）"
    else:
        return "混合换行符或无换行符"

file_path = "your_file_path_here"
result = check_newline_style(file_path)
print(result)

cat -A your_file_path_here

findstr /R /N /C:"^" your_file_path_here