如何将我的函数放入课堂. [英] How to put my function in to class.Beginner

问题描述

我有一个Json函数，下面需要构造一个具有两个函数的类，我的第二个函数将如何知道" data是第一个函数的响应

I have a Json function below need to construct a class having two function, How my second function will "know" that the data which is response from first function

def results():
        json_request = request.get_json()
        data = json.loads(json.dumps(json_request))
        return Response(data, mimetype='xml/html')

我的伪代码如下:

class Myjson():
     def function_one():
            json_request = request.get_json()
            data = json.loads(json.dumps(json_request))
     def function_two():
           return Response(data, mimetype='xml/html')

推荐答案

您必须将data保存为类的基础self对象的属性，例如:

You have to save your data as a property of the underlying self object of your class, e.g.:

class MyJson():
    def func1(self):
        self.data = ...
    def func2(self):
        return Response(self.data, ...)


x = MyJson()
x.func1()
y = x.func2()

请注意，最好不要在构造函数之外引入新的类属性，因此在实践中，您可能需要向__init__()方法中添加一些初始化self.data的内容，例如:

Note that it is a good programming practice not to introduce new class attributes outside the constructor, so in practice you may want to add to the __init__() method something to initialize self.data, e.g.:

class MyJson():
    def __init__(self):
        self.data = None
    def func1(self):
        self.data = ...
    def func2(self):
        return Response(self.data, ...)

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编辑

(以解决对信誉更好的来源的请求.)

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EDIT

(To address the request for a more reputable source.)

基本上，所有元素都可以在官方Python教程中找到专门用于类的章节.

Essentially, all the elements can be found in the official Python tutorial on the chapter dedicated to classes.

与此问题特别相关的是:

Of particular relevance to this question are:

• 有关范围的讨论
• 类对象的介绍
• 有关类和实例变量的讨论
• 随机注释的某些部分(尤其是结尾部分)

• the discussion on scopes
• the introduction of the class objects
• the discussion on class and instance variables
• some parts of the random remarks (especially at the end)

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