python - 在 Python 中的类之间传递数据

Question

我正在尝试在一本旧编程书中找到的练习任务，以增加我对 Python 类的了解。任务是创建一个程序，允许用户为学校设置一系列测试。每项测试不得超过 10 个问题。该任务指出，最好的方法是使用包含，并将“问题”类放在“测试”类中

基本上，我应该创建一个名为 Test 的类，它定义整个测试的基础知识，然后创建一个名为 Quesion 的类，它设置问题并将其传递回 Test 以包含在数组中。我有两个主要问题。首先，如何获取 Question 类中的 setQuestion 对象以将数据传递到 Test 类中的 Question 数组。其次，如何让 setQuestion 对象迭代变量 numberofQuestions，因为它包含在测试类中。

这是代码。不确定格式是否清楚，但 Question 类位于 Test 类内:

class Test(object):
    def __init__(self):
        self.__testID = 0
        self.__maxMarks = 0
        self.__questions = []
        self.__numberofQuestions = 0
        self.__level = ""
        self.__dateSet = ""


class Question(object):
    def __init__(self):
        self.__questionID = 0
        self.__questionText = ""
        self.__answer = ""
        self.__marks = 0
        self.__topic = ""

    def setQuestion(self, questionID, questionText, answer, marks, topic):
        self.__numberofQuestions = self.__numberofQuestions + 1
        self.__questionID = self.__questionID
        self.__questionText = self.__questionText
        self.__answer = self.__answer
        self.__marks = self.__marks
        self.__topic = self.__topic

Answer 1

我会这样做:

class Test(object):
       def __init__(self,id,marks):
             self.__testID = id
             self.__maxMarks = marks
             self.__questions = []
             self.__numberofQuestions = 0
             self.__level = ""
             self.__dateSet = ""

      def setQuestion(self,question):
             self.__numberofQuestions += 1
             self.__questions.append(question)

class Question(object):
      def __init__(self,id,text,answer,marks,topic):
                  self.__questionID = id
                  self.__questionText = text
                  self.__answer = answer
                  self.__marks = marks
                  self.__topic = topic

现在您可以将问题对象放入 Test 的 __question 数组中，如下所示:

if __name__ == "__main__":
       test = Test(1,100)
       test.setQuestion(Question(1,"Text","Answer",50,"Topic"))