谷安

摘要： 通用模式# -*- coding: utf-8 -*-def mydecorator(function): def _mydecorator(*args, **kw): #在调用实际函数之前做些填充工作 res = function(*args, **kw) #做完填充后 return res #返回子函数 return _mydecoratordef mydecorator(arg1, arg2): def _mydecorator(function): def __mydecorator(*args, *kw): res = function(*args, **kw) return res 阅读全文

摘要： hosts = file('D:/Test.txt')try: for line in hosts: if line.startswith('#'): continue print linefinally: hosts.close()with:可不关闭，与C#中using 类似：with file('D:/Test.txt') as hosts: for line in hosts: if line.startswith('#'): continue print host要使用with，需要类实现 __enter__ 与 __ex 阅读全文