添加到dict,这是一个类的属性

Question

我有一个这样的课:

class MyClass:
    def __init__(self, id, names):
        self.id = id
        self.names = names

后来,我这样做:

classlist = []
classlist.append(MyClass("1", {"Key1", "Value"})) #add first key-value pair
classlist[0].names["Key2"] = "New Value" #add second key-value pair

但它在第三行失败了 TypeError: 'set' object does not support item assignment.我是Python的新手,请教我如何正确地做到这一点.

Answer 1

你传递的是一套,而不是一本字典.它应该是

classlist.append(MyClass("1", {"Key1": "Value"}))

注意:而不是,分离Key1和Value. {arg, arg, arg}是创建集合的简写.