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嗨,我得到這個代碼StringVar()沒有定義的錯誤,它可能是一個小東西,但我不是與tkinter的經驗,並希望得到一些幫助,謝謝。Tkinter StringVar錯誤
這裏是我的代碼:
import tkinter as tk
class Converter1(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
self.entry = tk.Entry(self)
self.variable = StringVar()
self.variable.set("Miles to Kilometers") # default dropdown menu value
self.menu = tk.OptionMenu(self, variable, "Miles to Kilometers", "Kilometers to Miles")
self.button = tk.Button(self, text="Convert!", command=self.convertMK)
self.button.pack()
self.menu.pack()
self.button.pack()
self.entry.pack()
def convtertMK(self): # converts the miles and kilometers using the dropdown menu
if var.get() == "Miles to Kilometers":
print(int(self.entry.get()) * 1.6093)
else:
print(int(self.entry.get())/1.6093)
converter = Converter1()
這裏的錯誤:再次
Traceback (most recent call last):
File "/Users/MaxBookPro/Desktop/test.py", line 25, in <module>
converter = Converter1()
File "/Users/MaxBookPro/Desktop/test.py", line 8, in __init__
self.variable = Variable1
NameError: global name 'Variable1' is not defined
感謝。