031_class_encapsulation

#!/usr/bin/env python
# Author:liujun

class Role:

    n = 123; # This is a class variable stored in class(not in a object)
    name = "class name"
    n_list = []

    def __init__(self, name, role, weapon, life_value=100, money=15000):
        # This is constructor
        # The constructor is called during instantiation
        self.name = name #A member variable and it's scope is an object
        self.role = role
        self.weapon = weapon
        self.__life_value = life_value # This is a private variable
        self.money = money
    def __del__(self):
        # This is a destructor
        # The destructor is called when an object is deleted
        pass #print("%s 彻底死了。。。。" %self.name)

    def show_status(self):
        print("name:%s weapon:%s life_val:%s" %(self.name,self.weapon,self.__life_value))
    def __shot(self): # This is a private method.
        print("shooting...")

    def got_shot(self):
        self.__life_value -=50
        print("%s:ah...,I got shot..."% self.name)

    def buy_gun(self, gun_name):
        print("%s just bought %s" % (self.name,gun_name) )



r1 = Role('Chenronghua', 'police',  'AK47')
r2 = Role('liujun', 'terrorist',  'AK47')

print(Role.n)
print(r1.n)
print(r2.n)

print(Role.name)
print(r1.name) # search name in object first,and then name in class

r1.bullet_prove = True;
print(r1.bullet_prove) # Add a member variable just to r1 (not r2,not Role)
#print(r2.bullet_prove)

del r1.weapon # Delete a member variable just from r1 (not r2, not Role)

r1.n = 256; # You are not change the value of n in class but add a member variable to r1.
print(Role.n)

r1.n_list.append("from r1") # you are change n_list in class
r1.n_list = ["add"] # You are add a new list to r1(not r2, not class)
print(r1.n_list)
print(r2.n_list)