python学习之反射

#coding: utf8

class myClass(object):

    def fax(self):

        print 'faxing....'

    def copy(self):

        print 'copying...'

def printing():

    print 'printing....'

m = myClass()

if hasattr(m,'fax'):          #判断myClass类中是否有fax方法

    func = getattr(m,'fax')    #返回内存对象

    func()                #调用

setattr(m,'print2',printing)

m.print2()

try:

    #delattr(m,'copy')

    #print name

    #print dfdf

    #print tttt

    print m

except AttributeError,e:

    print 'something wrong..',e

except Exception,e:

    print e

finally:

    print '-----------'

#else:

#    print "print nothing wrong ...."

#/usr/bin/env python

#coding: utf8

import sys

class WEBServer(object):

     def __init__(self,host,port):

         self.host = host

         self.port = port

     def start(self):

         print "Server is starting..."

     def stop(self):

        print "Server is stopping..."

     def restart(self):

        self.stop()

        self.start()

if __name__ == "__main__":

     server = WebServer('localhost',80)

     #print sys.argv[1]

     cmd_dic = {

        'start':server.start,

        'stop':server.stop,

        'restart':server.restart,

     }

    #if sys.argv[1] == 'start':

     if sys.argv[1] in cmd_dic:

        cmd_dic[sys.argv[1]]()

#/usr/bin/env python

#coding: utf8

import sys

class WebServer(object):

     def __init__(self,host,port):

         self.host = host

         self.port = port

     def start(self):

         print "Server is starting..."

     def stop(self):

        print "Server is stopping..."

     def restart(self):

        self.stop()

        self.start()

if __name__ == "__main__":

     server = WebServer('localhost',80)

     if hasattr(server,sys.argv[1]):

         func = getattr(server,sys.argv[1])   ##获取server.start的内存地址

         func()     ##相当于server.start()

#/usr/bin/env python

#coding: utf8

import sys

class WebServer(object):

     def __init__(self,host,port):

         self.host = host

         self.port = port

     def start(self):

         print "Server is starting..."

     def stop(self):

        print "Server is stopping..."

     def restart(self):

        self.stop()

        self.start()

def test_run(name):

    print "running...",name

if __name__ == "__main__":

     server = WebServer('localhost',80)

     if hasattr(server,sys.argv[1]):

         func = getattr(server,sys.argv[1])   ##获取server.start的内存地址

         func()     ##相当于server.start()

     setattr(server,'run',test_run)  ##test_run以run身份绑定到server实例中

     server.run('peng')       ##类似执行test_run('peng')

#/usr/bin/env python

#coding: utf8

import sys

class WebServer(object):

     def __init__(self,host,port):

         self.host = host

         self.port = port

     def start(self):

         print "Server is starting..."

     def stop(self):

        print "Server is stopping..."

     def restart(self):

        self.stop()

        self.start()

def test_run(self,name):

    print "running...",name,self.host

if __name__ == "__main__":

     server = WebServer('localhost',80)

     if hasattr(server,sys.argv[1]):

         func = getattr(server,sys.argv[1])   ##获取server.start的内存地址

         func()     ##相当于server.start()

     setattr(server,'run',test_run)  ##test_run以run身份绑定到server实例中

     server.run(server,'peng')       ##类似执行test_run('peng')

#/usr/bin/env python

#coding: utf8

import sys

class WebServer(object):

     def __init__(self,host,port):

         self.host = host

         self.port = port

     def start(self):

         print "Server is starting..."

     def stop(self):

        print "Server is stopping..."

     def restart(self):

        self.stop()

        self.start()

def test_run(self,name):

    print "running...",name,self.host

if __name__ == "__main__":

     server = WebServer('localhost',80)

     if hasattr(server,sys.argv[1]):

         func = getattr(server,sys.argv[1])   ##获取server.start的内存地址

         func()     ##相当于server.start()

     delattr(WebServer,'start')

     print server.restart()

     #setattr(server,'run',test_run)  ##test_run以run身份绑定到server实例中

     #server.run(server,'peng')       ##类似执行test_run('peng')