class Student(object):def __init__(self, name, score):self.name = nameself.score = scoredef print_score(self):print('%s: %s' % (self.name, self.score))lg=Student('lg',99)lg.namelg.print_score()class Person:"""不帶object"""name = "zhengtong"class Animal(object):"""帶有object"""name = "chonghong"if __name__ == "__main__":x = Person()print ("Person", len(dir(x)))print ("Person", dir(x))y = Animal()print ("Animal", len(dir(y)))print ("Animal", dir(y)) lg: 99 Person 27 Person ['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'name'] Animal 27 Animal ['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'name']

object是一個基類，或稱之為元類。在Python3 中加不加一個樣

總結

以上是生活随笔為你收集整理的python2中为什么在进行类定义时最好要加object的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。