在Python中調試RadioButtons程序

Question

我寫了一個簡單的程序導入Tkinter只是為了播放Radio Buttons。 我發現我在非常非常奇怪的地方遇到錯誤。

 from Tkinter import *

class Application (Frame):
    def __init__(self, master):
        Frame.__init__(self, master)
        self.grid()
        self.create_widgets()

    def create_widgets(self):


        Label(self, text = "Select the last book you read.").grid (row = 0, column = 0, sticky = W)

        self.choice = StringVar() 

        Radiobutton (self,text = "Nausea by Jean-Paul Sartre",variable = self.choice,
                 value = "Wake up. This is a dream. This is all only a test of the emergency broadcasting system.",
                 command = self.update_text).grid (row = 2, column = 1, sticky = W)

        Radiobutton (self,
                 text = "Infinite Jest by David Foster Wallace",
                 variable = self.choice,
                 value = "Because an adult borne without the volition to choose the thoughts that he thinks, is going to get hosed ;)",
                 command = self.update_text).grid (row = 3, column = 1, sticky = W)

        Radiobutton (self,
                 text = "Cat's Cradle by Kurt Vonnegut",
                 variable = self.choice,
                 value = " \"Here we are, trapped in the amber of the moment. There is no why!\" ",
                 command = self.update_text.grid (row = 4, column = 1, sticky = W)

        self.txt_display = Text (self, width = 40, height = 5, wrap = WORD)
        self.txt_display.grid (row = 6, column = 0, sticky = W)


    #There is only one choice value - self.choice. That can be "printed."

    def update_text(self):
        message = self.choice.get()
        self.txt_display.delete (0.0, END)
        self.txt_display.insert (0.0, message)

# The Main
root = Tk()
root.title ("The Book Critic One")
root.geometry ("400x400")

app = Application (root)
root.mainloop()

我似乎在非常奇怪的地方遇到錯誤。 其中一個出現在Label歸屬中的“=”符號中，當我在玩游戲時將其更改為==時，下一個符號出現在RadioButton屬性的變量部分中。

任何幫助將不勝感激。 因為我必須稍微離開工作，所以無法立即回復，但如果您確實發現了錯誤的位置，請告訴我。

Answer 1

這里有很多事情要發生。 我只想指出一些我很快發現的事情。

對於你的Label你不應該在你的參數之前有=

Label = (self, text = "Select the last book you read.").grid (row = 0, column = 0, sticky = W)

至：

Label(self, text = "Select the last book you read.").grid (row = 0, column = 0, sticky = W)

將RadioButton所有實例更改為Radiobutton因為這是Tkinter中類的實際名稱。

choice1 ， choice2 ，和choice3不存在Application 。

更多東西：

def create_widgets()缺少self參數： def create_widgets(self)

你的update_text()函數無法正常工作，因為你引用的是self.text_display ，我相信你希望它是self.txt_display因為這是你之前定義它的方式。