目录 需求 示例代码 笨办法 Pythonic方法 需求 要写一个接口,同时支持压缩和未压缩文件读入 示例代码 笨办法 import os import gzip filename = sys.argv[1] if not filename.endswith('.gz'): with open(filename, 'r') as infile: for line in infile: # do something else: with gzip.open(filename, 'r') as in