可以将外部方法添加到 class 的新实例的装饰器

Question

I have an class:我有一个 class：

class Klass:
    pass

and an outside method:和外部方法：

def foo():
    return "foo method"

How to pass the test:如何通过测试：

assert Klass().foo() == "foo method"

with decorator for foo method?使用foo方法的装饰器？ edited: without changes in Klass已编辑：没有更改Klass

Answer 1

I'm not sure I understand what would you like to get by saying decorator but how about this?我不确定我是否理解你想通过说decorator得到什么，但是这个怎么样？

class Klass:
    
    def foo(self):
        return "foo method"

assert Klass().foo() == "foo method"

If this is not what are you looking for, please try to find some better words.如果这不是你要找的，请尝试找到一些更好的词。