Tkinter Python 3标签

Question

我在用Tkinter做复习测验。程序将自动从数组中获取问题，然后使用标签输出问题。当按下submit按钮时，程序将检查答案，然后应该将标签更新到数组中的下一个问题，但是没有，没有错误消息。分数更新了，但是标签没有更新。你知道吗

def entryQuestion():

    entryOpen = open('./files/entry.csv','r')
    entryFile = csv.reader(entryOpen, delimiter = ',')

    global entryQuestionArray
    entryQuestionArray = []
    for topic, question, answer in entryFile:
        for i in range(0,1):
            entryQuestionArray.append(question)

    entryQuestionArray = random.sample(entryQuestionArray, len(entryQuestionArray))

    arrayLength = len(entryQuestionArray)

    for x in entryQuestionArray:
        global qOut
        qOut = x
        global entryQuestion
        entryQuestion = Label(entryQ, text = x)
        entryQuestion.grid(row = 1, column = 0, columnspan = 3)

        global answerEntry
        answerEntry = StringVar()
        global answerEntryBox
        answerEntryBox = Entry(entryQ, textvariable = answerEntry)
        answerEntryBox.grid(row = 2, column = 0, columnspan = 3)

        submitEntryAnswer = Button(entryQ, text = 'Submit Answer', command = entryQuestionCheck)
        submitEntryAnswer.grid(row = 3, column = 2)

def entryQuestionCheck():
    entryOpen = open('./files/entry.csv','r')
    entryFile = csv.reader(entryOpen, delimiter = ',')
    tempScore = score
    for topic, question, answer in entryFile:
        if qOut == question:
            if answerEntry.get() == answer:
                tempScore = tempScore + 1
            else:
                tempScore = tempScore +  0

    return

有人能帮忙吗？你知道吗

Answer 1

每个小部件只需要一个调用，在顶部或主类中，您只需要调用他一次：

class MainPage(#values):
    self.label1 = tk.Label(self, #values)

在函数中，如果你需要改变你的值，比如文本，你只需要把自我值传递给函数，然后改变他，像这样：

def changeValues(self):
    self.label["text"] = "the text that u want to put in"

或：

def changeValues(label):
    label["text"] = "the text that u want to put in"

在主类或作用域中，需要使用值调用函数，如果在作用域中（不在类中），则需要在值中传递小部件：

class MainPage(#values):
    self.label1 = tk.Label(self, #values)
    changeValues(self)

或：

label1 = tk.Label(self, #values)
changeValues(label1)