python 知识点，,类的反射器：pyth

python 知识点，,类的反射器：pyth

类的反射器：

python class.py sys.argv[1]

#/usr/bin/env python# -*- coding:utf-8 -*-import sysclass webserver(object):    def __init__(self,host,port):        self.host = host        self.port = port    def start(self):        print(‘server %s is starting‘%self.host)    def stop(self):        print(‘server %s is stoping‘%self.host)    def restart(self):        self.start()        self.stop()if __name__ == "__main__":    server = webserver(‘localhost‘,‘333‘)    if hasattr(server,sys.argv[1]): #判断参数是否在实例中        func = getattr(server,sys.argv[1])#获取实例的内存地址        func()#执行实例的方法可以传参数

python 知识点