如: 将 pýtĥöñ 标准化成 python 方法一: https://python3-cookbook.readthedocs.io/zh_CN/latest/c02/p09_normalize_unicode_text_to_regexp.html方法二: https://python3-cookbook.readthedocs.io/zh_CN/latest/c02/p12_sanitizing_clean_up_text.html