废话少说,下面我们看用python怎么实现unix管道风格的函数调用.
#coding=utf-8 class Pipe: def __init__(self, func): self.func = func def __ror__(self, other): return self.func(other) @Pipe def add(args): return sum(args) @Pipe def incr(arg): return arg + 1 print [1, 2, 3] | add | incr原理就是装饰器+操作符重载.(对装饰器一知半解的请看<python装饰器的本质>)
原文地址:http://blog.csdn.net/handsomekang/article/details/39997849