学习知识点：
类
构造函数
析构函数
私有方法，私有属性
类变量
实例变量
1 # __*__ coding: utf-8 __*__ 2 __author__ = "David.z" 3 4 class Role: 5 n = 123 #类变量 6 n_list=[] 7 name = "我是类name" 8 def __init__(self,name,role,weapon,life_value=100,money=15000): 9 #构造函数10 #在实例化时做一些类的初始化工作11 12 self.name = name #r1.name=name实例变量（静态属性），作用域就是实例本身13 self.role = role14 self.weapon = weapon15 self.__life_value = life_value16 self.money = money17 def __del__(self): #析构函数18 print("%s彻底死了。。。"%self.name)19 def show_status(self):20 print("name:%s weapon:%s life_value:%s" %(self.name,self.weapon,self.__life_value))21 def shot(self):22 print("shooting...")23 def got_shot(self):24 self.__life_value -= 5025 print("%s:ah...,I got shot..."% self.name)26 27 def buy_gun(self,gun_name):28 print("%s just bought %s"%(self.name,gun_name))29 r1 = Role('Chenronghua','police','AK47')30 r1.buy_gun("AK47")31 r1.got_shot()32 33 print(r1.show_status())34 35 r2 = Role('jack','terrorist','B22')36 r2.got_shot()