有人可以写一个简单的Python旧样式类和新样式类的例子吗？

Question

虽然有几篇关于新课程的文章与旧课程有关，但我无法看到具有旧/新风格的基本示例。

Answer 1

唯一的语法不同的是，新式类的对象继承：

class Old: 
    ... 

class New(object): 
    .... 

Answer 2

我相信this wiki post是你在找什么：

<snip> 
The minor syntactic difference is that New Style Classes happen 
to inherit from object. 

class Old1: 
    ... 

class Old2(Old1, UserDict): # Assuming UserDict is still old-style 
    ... 

vs 

class New1(object): 
    ... class New2(New1): 
    ... class New3(Old1, New2): 
    ... class New4(dict, Old1): # dict is a newstyle class 
<snip>