python---面向对象编程1

python—面向对象编程1

事例1（正常都是要绑定到事例上的）：使用绑定事例上执行

root@kali:~/python/mod# python class.pyTraceback (most recent call last):  File "class.py", line 8, in <module>    p.info('xwb',22)TypeError: info() takes exactly 2 arguments (3 given)root@kali:~/python/mod# vi class.pyroot@kali:~/python/mod# cat  class.py#!/usr/bin/python# --*-- coding:utf-8 --*--class person:        def info(self,name,age):#必须给三个参数，self是python语言约定俗称的                print 'you name is %s,age is %s'%(name,age)p = person()p.info('xwb',22)root@kali:~/python/mod# root@kali:~/python/mod# vi class.pyroot@kali:~/python/mod# python class.pyyou name is xwb,age is 22

事例2：不使用绑定事例上执行

root@kali:~/python/mod# vi class.pyroot@kali:~/python/mod# cat  class.py#!/usr/bin/python# --*-- coding:utf-8 --*--class person:        def info(self,name,age):#必须给三个参数，self是python语言约定俗称的                print 'you name is %s,age is %s'%(name,age)#--------绑定事例-----#p = person()#p.info('xwb',22)#-------------------------                 #-----不绑定实例---------person().info('xwb',25)#-----------------------root@kali:~/python/mod# python class.pyyou name is xwb,age is 25root@kali:~/python/mod# 

3、类的初始化

root@kali:~/python/mod# vi class1.py root@kali:~/python/mod# cat class1.py #!/usr/bin/python# --*-- coding:utf-8 --*--class person:    def __init__(self,nationality):        pass            def info(self,name,age):#必须给三个参数，self是python语言约定俗称的                print 'you name is %s,age is %s,you are%s'%(name,age,nationality)#--------绑定事例-----p = person('CN')p.info('xwb',22)#-------------------------                 #-----不绑定实例---------#person().info('xwb',25)#-----------------------root@kali:~/python/mod# python class1.py Traceback (most recent call last):  File "class1.py", line 14, in <module>    p.info('xwb',22)  File "class1.py", line 9, in info    print 'you name is %s,age is %s,you are%s'%(name,age,nationality)NameError: global name 'nationality' is not definedroot@kali:~/python/mod# 

初始化

root@kali:~/python/mod# vi class1.py root@kali:~/python/mod# cat class1.py #!/usr/bin/python# --*-- coding:utf-8 --*--class person:#这里的（）是继承其他的类的    def __init__(self,nationality):#初始化        self.country = nationality#初始化变量        def info(self,name,age):#必须给三个参数，self是python语言约定俗称的                print 'you name is %s,age is %s,you are%s'%(name,age,self.country)#--------绑定事例-----p = person('CN')p.info('xwb',22)#-------------------------                 #-----不绑定实例---------#person().info('xwb',25)#-----------------------root@kali:~/python/mod# python class1.py you name is xwb,age is 22,you areCNroot@kali:~/python/mod# 

root@kali:~/python/mod# vi class2.py root@kali:~/python/mod# cat class2.py #!/usr/bin/python# --*-- coding:utf-8 --*--class person:    def __init__(self,name,nationality,age,sex,job):        self.Name = name        self.Country = nationality        self.Age = age        self.Sex= sex        self.Job = job    def talk(self,msg):        if msg != 0:            print '''Hello %s,        you are from %s        you are %s years old        you are %s        your job is %s.        Am i right?''' %(self.Name,self.Country,self.Age,self.Sex,self.Job)#--------绑定实例-------------#p = person('xuweibo','CN','19','Malse','IT Engineor')#p.talk(2)#----------------------------#----------不绑定实例-------------------person('xuweibo','CN','19','Malse','IT Engineor').talk(2)root@kali:~/python/mod# python class2.py Hello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?root@kali:~/python/mod# 

使用绑定事例话，调用非常简单、方便

root@kali:~/python/mod# cat class2.py #!/usr/bin/python# --*-- coding:utf-8 --*--class person:    def __init__(self,name,nationality,age,sex,job):        self.Name = name        self.Country = nationality        self.Age = age        self.Sex= sex        self.Job = job    def talk(self,msg):        if msg != 0:            print '''Hello %s,        you are from %s        you are %s years old        you are %s        your job is %s.        Am i right?''' %(self.Name,self.Country,self.Age,self.Sex,self.Job)    def skill(self):        if self.Job == 'IT Engineor':            print '''To be IT Engineor,you must many skills:\n        1.Linux        2.shell        3.database        4.python        '''#--------绑定实例-------------p = person('xuweibo','CN','19','Malse','IT Engineor')p.talk(2)p.skill()#----------------------------#----------不绑定实例-------------------#person('xuweibo','CN','19','Malse','IT Engineor').talk(2)#person('xuweibo','CN','19','Malse','IT Engineor').skill()#--------------------------------------root@kali:~/python/mod# python class2.py Hello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?To be IT Engineor,you must many skills:        1.Linux        2.shell        3.database        4.pythonroot@kali:~/python/mod# 

在python交换环境中调用类中自定义变量与变量方式：

root@kali:~/python/mod# vi class2.py root@kali:~/python/mod# cat class2.py #!/usr/bin/python# --*-- coding:utf-8 --*--class person:    def __init__(self,name,nationality,age,sex,job):        self.Name = name        self.Country = nationality        self.Age = age        self.Sex= sex        self.Job = job    def talk(self,msg):        self.msg = msg#定义msg变量，可以在python交换环境中调用        if self.msg != 0:            print '''Hello %s,        you are from %s        you are %s years old        you are %s        your job is %s.        Am i right?''' %(self.Name,self.Country,self.Age,self.Sex,self.Job)    def skill(self):        if self.Job == 'IT Engineor':            print '''To be IT Engineor,you must many skills:\n        1.Linux        2.shell        3.database        4.python        '''#--------绑定实例-------------p = person('xuweibo','CN','19','Malse','IT Engineor')p.talk(2)p.skill()#----------------------------#----------不绑定实例-------------------#person('xuweibo','CN','19','Malse','IT Engineor').talk(2)#person('xuweibo','CN','19','Malse','IT Engineor').skill()#--------------------------------------root@kali:~/python/mod# python class2.py Hello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?To be IT Engineor,you must many skills:        1.Linux        2.shell        3.database        4.pythonroot@kali:~/python/mod# pythonPython 2.7.3 (default, Mar 14 2014, 11:57:14) [GCC 4.7.2] on linux2Type "help", "copyright", "credits" or "license" for more information.>>> import tab>>> import class2Hello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?To be IT Engineor,you must many skills:        1.Linux        2.shell        3.database        4.python>>> class2.class2.__class__(         class2.__file__           class2.__init__(          class2.__reduce__(        class2.__sizeof__(        class2.personclass2.__delattr__(       class2.__format__(        class2.__name__           class2.__reduce_ex__(     class2.__str__(           class2.__dict__           class2.__getattribute__(  class2.__new__(           class2.__repr__(          class2.__subclasshook__(  class2.__doc__            class2.__hash__(          class2.__package__        class2.__setattr__(       class2.p                  >>> class2.p.class2.p.Age         class2.p.Job         class2.p.Sex         class2.p.__doc__     class2.p.__module__  class2.p.skill(      class2.p.Country     class2.p.Name        class2.p.__class__   class2.p.__init__(   class2.p.msg         class2.p.talk(    

当中class2.p.msg 变量就可以显示出来调用

类型函数功能可以相互调用

root@kali:~/python/mod# vi class2.pyroot@kali:~/python/mod# python class2.pyHello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?To be IT Engineor,you must many skills:        1.Linux        2.shell        3.database        4.pythonTraceback (most recent call last):  File "class2.py", line 41, in <module>    p.action(4)TypeError: action() takes exactly 1 argument (2 given)root@kali:~/python/mod# vi class2.pyroot@kali:~/python/mod# python class2.pyHello xuweibo,        you are from CN        you are 19 years old        you are Malse        your job is IT Engineor.        Am i right?To be IT Engineor,you must many skills:        1.Linux        2.shell        3.database        4.pythoncall this fuction!!root@kali:~/python/mod# cat class2.py#!/usr/bin/python# --*-- coding:utf-8 --*--class person:    def __init__(self,name,nationality,age,sex,job):        self.Name = name        self.Country = nationality        self.Age = age        self.Sex= sex        self.Job = job    def talk(self,msg):        self.msg = msg#定义msg变量，可以在python交换环境中调用        if self.msg != 0:            print '''Hello %s,        you are from %s        you are %s years old        you are %s        your job is %s.        Am i right?''' %(self.Name,self.Country,self.Age,self.Sex,self.Job)    def skill(self):        if self.Job == 'IT Engineor':            print '''To be IT Engineor,you must many skills:\n        1.Linux        2.shell        3.database        4.python        '''    def action(self):        if self.msg != 2:            print 'call this fuction!!'        else:            pass#--------绑定实例-------------p = person('xuweibo','CN','19','Malse','IT Engineor')p.talk(1)p.skill()p.action()#----------------------------#----------不绑定实例-------------------#person('xuweibo','CN','19','Malse','IT Engineor').talk(2)#person('xuweibo','CN','19','Malse','IT Engineor').skill()#--------------------------------------root@kali:~/python/mod#