【Python】类与对象 类的各种方法

class Hello:
    '''this is a class'''
    school='luffy'  #类的变量

    def say(self):
        print('hello!')

    def __init__(self):  #绑定给对象的属性
        self.a = 'a'
        self.b = 'b'

    @classmethod
    def ddd(self):
        print('')
        for i in self.__dict__:
            print(i, self.__dict__[i], sep='   \t')

print('==类的名称空间字典：')
for i in Hello.__dict__:
    print(i, Hello.__dict__[i], sep='   \t')
print('=========')
print('==Hello cls')
Hello.ddd()
print('=========')

print('===student===')
student1 = Hello()
for i in student.__dict__:
    print(i,student.__dict__[i], sep='   \t')
print('======')

print('===sutdent.cls===')
student1.ddd()

you = Hello()
you.say()

# 增
student1 = Luffycity()

# 查
print(student1.a)

# 改
student1.b = 'gai'

# 删
del student1

class Luffycity:
    '''this is a class'''
    school='luffy'  #类的变量

    def __init__(self):  #绑定给对象的属性
        self.a = 'a'
        self.b = 'b'

    def aaa(self):  #绑定给对象的方法
        pass

    @property    #属性化的方法
    def bbb(self):
        pass

    @staticmethod    #类的静态方法
    def ccc():
        pass

    @classmethod   #绑定给类的方法
    def ddd(cls):
        print('')
        for i in cls.__dict__:
            print(i, cls.__dict__[i], sep='   \t')