>>> import os 导入模块 >>> os.listdir(“d:\\python25”) 列出所有目录和文件 [‘w9xpopen.exe’, ‘README.txt’, ‘NEWS.txt’, ‘LICENSE.txt’, ‘python.exe’, ‘pythonw.exe’, ‘Lib’, ‘DLLs’, ‘include’, ‘libs’, ‘tcl’, ‘Tools’, ‘Doc’, ‘odbchelper.py’, ‘odbchelper.pyc’, ‘test.log’, ‘sqlConnection.py’, ‘