Python类的部分

先来一段代码 表示互殴

class Gailun:
    country='demaxia'
    def __init__(self,name,age,life_value,att):
        self.name=name
        self.age=age
        self.life_value=life_value
        self.att=att
    def attack(self,enemy):
        enemy.life_value -= self.att




class Riwen:
    country='nocxus'
    def __init__(self,name,age,life_value,att):
        self.name=name
        self.age=age
        self.life_value=life_value
        self.att=att
    def attack(self,enemy):
        enemy.life_value-=self.att


g1=Gailun('nod','24',1000,100)

r1=Riwen('riwen','25',800,200)

while True:
    if g1.life_value>=0:
        g1.attack(r1)
        print('riven的生命值是%s'%r1.life_value)
        r1.attack(g1)
        print('galn的生命值是%s' % g1.life_value)
        if r1.life_value<0:
            print('%s已经阵亡' % r1.name)
            break
    else:
        print('%s已经阵亡，生命值为%s'%(g1.name,g1.life_value))
        break

类的创建

#类体定义的代码在类的定义阶段就会运行

class Student:
    school='oldboy'
    def learn(self):
        print('is learning')
    def choose_course(self):
        print('is choose')


print(Student)

#查看
print(Student.school)
print(Student.learn)

#修改
Student.school='oldboyedu'
print(Student.school)


#增加

Student.country='China'
print(Student.country)

#删除
del Student.country
# print(Student.country)


#调用函数
Student.learn('nod')
Student.learn() #如果不传参数会出错

类对象属性的查找

#类的所有数据属性是所有对象共享，所有对象都指向同一个地址
#类定义的函数就是给绑定给对象方法使用
#不同对象就是不同绑定方法
#绑定给谁 就应该由谁来调用 谁来调用就会把谁当做第一个参数传递给对应函数

class Student:
    school='oldboyedu'
    def __init__(self,name,age,sex):
        self.Name=name
        self.Age=age
        self.Sex=sex
    def learn(self):
        print('%s is learning'%self.Name)

    def choose_course(self):
        print('is choose_course')

stu1=Student('nod','24','M')
stu2=Student('luna','25','W')
stu1.learn()
stu2.learn()

class Student:
    school='oldboyedu'
    def __init__(self,name,age,sex):
        self.Name=name
        self.Age=age
        self.Sex=sex
    def learn(self):
        print('is learning')


    def choose_course(self):
        print('is choose course')
#调用类的过程称之为实例化
#得到一个返回值 即对象 该对象是一个空的stu1
#Stuent.__init__(stu1,'nod','24','M')
stu1=Student('nod','24','M')
print(stu1.__dict__)  #__dict__  查看自己的名称空间
print(type(stu1))
print(stu1.Name,stu1.Age,stu1.Sex)