一，類屬性的操作

class Chinese:
    country = 'China'
    def __init__(self,name):
        self.name = name
    def play_ball(self,ball):
        print('%s play %s' %(self.name,ball))

#檢視屬性
print(Chinese.country)

#修改屬性
Chinese.country = 'Japan'
print(Chinese.country)
p1 = Chinese('alex')
print(p1.__dict__)
print(p1.country)


#增加屬性
Chinese.dang = '共產黨'
print(Chinese.dang)
print(p1.dang)

#刪除屬性
del Chinese.dang
del Chinese.country
print(Chinese.__dict__)
 

二，物件屬性的操作

class Chinese:
    country = 'China'
    def __init__(self,name):
        self.name = name
    def play_ball(self,ball):
        print('%s play %s' %(self.name,ball))


def test():
        print("物件方法的屬性")

p1 = Chinese('alex')
print(p1.__dict__)

#檢視屬性
print(p1.name)
print(p1.play_ball)

#增加屬性
p1.age = 18
print(p1.__dict__)
print(p1.age)
p1.test = test      #將外界的方法作為函式屬性加入類中
print(p1.__dict__)
p1.test()


#修改屬性
p1.age = 19
print(p1.__dict__)
print(p1.age)

#刪除屬性
del p1.age
print(p1.__dict__)