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我有兩個字符串變量,我想跟蹤相同的回調,這些變量用於兩個下拉菜單。使用Tkinter時可變跟蹤方法錯誤
當我將兩個變量跟蹤到相同的函數時,會發生問題。我AttributeError的,這裏是錯誤
import Tkinter as tk
import ttk
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.handlersList = ["handlr1", "handlr2", "handlr3"]
self.modemList = ["modem1","modem2","modem3"]
self.selctdModm = tk.StringVar(self)
self.selctdModm.set("Select a Modem")
self.defaultModem = "Select a Modem"
self.modemList.insert(0,self.defaultModem)
self.selctdModm.trace('w', self.start)
self.drop_Menu_Modems = ttk.OptionMenu(self, self.selctdModm,
self.modemList[0],
*self.modemList,
command= "")
self.drop_Menu_Modems.pack()
self.drop_Menu_Modems.config(width = 15)
self.selctdHandler = tk.StringVar(self)
self.selctdHandler.set("Select a Handler")
self.defaultHandlr = "Select a Handler"
self.handlersList.insert(0,self.defaultHandlr)
self.selctdHandler.trace('w', self.start)
self.drop_Menu_handlrs = ttk.OptionMenu(self, self.selctdHandler,
self.handlersList[0],
*self.handlersList,
command= "")
self.drop_Menu_handlrs.pack()
self.drop_Menu_handlrs.config(width = 15)
def start(self, *args):
handler = self.selctdHandler.get()
app = SampleApp()
app.mainloop()