Python - python开发基础(五)面向对象--类属性和实例属性 - 迁移

# 类属性的增删改查
import time class Chinesepeople:

    country = 'China' person_type = '人'

    def __init__(self, name):
        self.name = name def play_ball(self, ball): print('%s正在玩%s' % (self.name, ball)) def eat_foot(self, foot): print('%s正在吃%s' % (self.name, foot)) # 查看类属性
print(Chinesepeople.country) # 修改类属性
Chinesepeople.country = 'CHINA'
print(Chinesepeople.country) # 增加类属性
Chinesepeople.time_now = time.asctime() # 删除类属性
print(Chinesepeople.__dict__) del Chinesepeople.person_type print(Chinesepeople.__dict__)

person1 = Chinesepeople('jack')
person1.play_ball(ball='ball') print(person1.time_now)

# 实例属性的增删改查
class Chinese: def __init__(self, name):
        self.name = name def play_ball(self, ball): print('%s正在完%s' % (self.name, ball))


person1 = Chinese('alex') # 查看
print(person1.name) # 增加
person1.age = 18
print(person1.age) # 修改
person1.age = 20
print(person1.age) print(person1.__dict__) # 删除
del person1.age print(person1.__dict__)