self,和类实例化加不加括号的理解

# class Dog(object):
#     def talk(self):
#         print('汪汪~~~')
#         print(self) # self就是对象,默认将对象传递到类方法,self不需要程序手动传递
#
# erha = Dog()
# talk是一个函数,是类里面的函数,只有对象能使用:对象名.函数名()
# erha.talk()
# print(erha)
#
# samo = Dog()
# samo.talk()
# print(samo)
class clsTest():
    y = '2333'
    def __init__(self):
        self.y = '你'
    # def __init__(self):
    #     self.y = '你'

x = clsTest
print(x.y)
print(clsTest.y)
print('-'*30)      # -------实例化时不加括号的话,对象无法传递到类的self中,所以无法获取到类对象的方法和属性
x = clsTest()      # -------只能算是给类起个名字吧
print(x.y)
print(clsTest().y)

  

                                                                   -------  知识无价,汗水有情,如需搬运请注明出处,谢谢!

原文地址:https://www.cnblogs.com/wf-skylark/p/9009287.html