摘要：引用自：http://www.hanselman.com/blog/TheWeeklySourceCode31SingleInstanceWinFormsAndMicrosoftVisualBasicdll.aspxusing System;using System.Windows.Forms;using Microsoft.VisualBasic.ApplicationServices;namespace SuperSingleInstance{static class Program{[STAThread]static void Main(){Application.EnableVisua 阅读全文

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

摘要：Example1：def fibonacci(): a, b = 0, 1 while True: print 'abc' yield b a, b = b, a+bfib = fibonacci()fib.next()[fib.next() for i in range(10)] #感觉这种写法很精妙Example 2： yield 作为表达式 Send 来填充 yield表达式，throw 抛出异常，close抛出GeneratorExit异常def psychologist(): print 'Please tell me your problems' w 阅读全文

摘要：class MyIterator(object): def __init__(self, step): self.step = step def next(self): if self.step == 0: raise StopIteration self.step -= 1 return self.step def __iter__(self): return self [el for el in MyIterator(4)] 阅读全文

摘要：seq = ['one', 'two', 'three']def FormatStr(pos, element): return '%d: %s' % (pos, element)[FormatStr(i, el) for i, el in enumerate(seq)] 阅读全文