使用多个wxPython窗口的问卷调查程序

Question

我有超过300个问题，我计划包括在计划中。流程大致是这样的：

• 创建一个带有问题的窗口
• 将答案存储在变量中
• 创建带有问题的新窗口
• 存储新答案

(这将持续到300多个问题。)

我有两个问题：

1. 这最终会不会导致崩溃，因为我创建了这么多的窗口？
2. 如果对第二个问题(A2)选择“是”，则所有操作都适用于此代码，但如果选择“否”，则不起作用。你能看看你能不能找到它的什么毛病？

import wx

a1 = ['Apples', 'Bananas', 'Strawberries', 'Watermelon',
     "Don't remember", 'None of the above']

a2 = ['No', 'Yes']

a4 = ['No', 'Yes']


class Fruit(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Fruit', size=(300,200))

        #create panel and button
        panel = wx.Panel(self)

        # B1 - create multiple choice list
        box = wx.MultiChoiceDialog(None, """

A1.    What kind of fruit did you buy at the store?""", 'Fruit', a1)
        if box.ShowModal() == wx.ID_OK:
            a_1 = box.GetSelections()


        print (a_1, '\n')

        # A2 - create single choice list
        box = wx.SingleChoiceDialog(None, """
A2.    Do you like eating fruit?
""", 'Fruit', a2)
        if box.ShowModal() == wx.ID_OK:
            a_2 = box.GetStringSelection()

        print (a_2, '\n')

        if a_2 == 'Yes':
            box = wx.TextEntryDialog(None, "A3.    What kind of fruit is your favorite? ", "Fruit", "")
        if box.ShowModal() == wx.ID_OK:
            a_3 = box.GetValue()

        print (a_3, '\n')


        box = wx.SingleChoiceDialog(None, """
A4.    Did you eat the fruit that you bought?
""", 'Fruit', a4)
        if box.ShowModal() == wx.ID_OK:
            a_4 = box.GetStringSelection()

        print (a_4, '\n')

Answer 1

import wx

a1 = ['Apples', 'Bananas', 'Strawberries', 'Watermelon',
     "Don't remember", 'None of the above']

a2 = ['No', 'Yes']

a4 = ['No', 'Yes']

Python指南推荐全局常量为ALL_CAPS。

class Fruit(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Fruit', size=(300,200))

        #create panel and button
        panel = wx.Panel(self)

        # B1 - create multiple choice list
        box = wx.MultiChoiceDialog(None, """

A1.    What kind of fruit did you buy at the store?""", 'Fruit', a1)

当字符串长度足够长以至于被迫跨越多条线时，通常最好将它们移动到全局常量。

        if box.ShowModal() == wx.ID_OK:
            a_1 = box.GetSelections()


        print (a_1, '\n')

我觉得这不像你想的那样。对于python2.x(除非最近已经将wxPython移植到python3.x，这必须是您正在使用的)，您不应该将括号放在您的print语句后面。

            # A2 - create single choice list
        box = wx.SingleChoiceDialog(None, """
A2.    Do you like eating fruit?
""", 'Fruit', a2)
        if box.ShowModal() == wx.ID_OK:
            a_2 = box.GetStringSelection()

        print (a_2, '\n')

        if a_2 == 'Yes':
            box = wx.TextEntryDialog(None, "A3.    What kind of fruit is your favorite? ", "Fruit", "")
        if box.ShowModal() == wx.ID_OK:

如果对前一个问题的回答是“是”，那么框现在是问问题A3的结果。不过，不然的话，这仍然是前一个问题。因此，它会再次问同样的问题。您可能希望缩进这个if块，以便只有在a_2为Yes时才会发生这种情况。

            a_3 = box.GetValue()


        print (a_3, '\n')


        box = wx.SingleChoiceDialog(None, """
A4.    Did you eat the fruit that you bought?
""", 'Fruit', a4)
        if box.ShowModal() == wx.ID_OK:
            a_4 = box.GetStringSelection()

        print (a_4, '\n')

至于你的问题：

1. 您可能可以通过创建这么多窗口而不受影响。但是，您可以通过调用一个对话框()方法来确保一个对话框被销毁。
2. 我上面解释了你的逻辑出了什么问题。