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.py
Traceback (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.py
root@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.py
root@kali:~/python/mod# python class.py
you 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.py
root@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.py
you name is xwb,age is 25
root@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 defined
root@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 areCN
root@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.python

root@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.python

root@kali:~/python/mod# python
Python 2.7.3 (default, Mar 14 2014, 11:57:14) 
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import tab
>>> import class2
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.python

>>> class2.
class2.__class__(         class2.__file__           class2.__init__(          class2.__reduce__(        class2.__sizeof__(        class2.person
class2.__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.py
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.python

Traceback (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.py
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.python

call 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#