我正在尝试使用默认值创建无线电按钮的2D网格。网格可以具有多达256行但总是3列。我已经研究了很多并尝试了很多选项，这是我现在最好的代码。显然我是Python和Tkinter的新手，因此非常感谢任何有关解决我的困境（和代码编写）的其他建议。另外请记住，我需要回读每一行单选按钮，以确定检查了哪一个。
import Tkinter as tk
from Tkinter import *
class GUI(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.pack()
self.initUI()
def initUI(self):
# the 5Hz radio button should be selected as default
self.freqs=['1Hz','5Hz','10Hz']
self.numFreqs = len(self.freqs)
#val and var are set up to try to establish the defaults
#every 3 vals = 1 var therfore the middle val should = var
# val 0,1,2 = var 1 , val 3,4,5 = var 4 , val 6,7,8 = var 7
# this should allow the 5hx radiobuttonto be default selected
self.val = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]
self.var=[1,4,7,10,13]
self.var[0] = IntVar()
self.var[1] = IntVar()
self.var[2] = IntVar()
self.var[3] = IntVar()
self.var[4] = IntVar()
self.cButtons = []
self.rButtons1 = []
self.rButtons2 = []
self.rButtons3 = []
self.textLbls = ['Choice 1', 'Choice 2', 'Choice 3','Choice 4','Choice 5']
#build enough values for 256 rows of 3 radiobuttons
#For var = [1,4,7,10... val = [0,1,2, 3,4,5, 6,7,8... so vars match vals on the 5hz radiobutton
#Can't do this since it creates the'many already selected bug'
#See http://stackoverflow.com/questions/5071559/tkinter-radio-button-initialization-bug
#for i in range(len(self.var)):
#self.var[i] = IntVar()
for i in range(len(self.textLbls)):
temp = self.val[(self.numFreqs*i)+1]
temp1 = self.var[i]
self.cButtons.append(Checkbutton(self, text=self.textLbls[i], onvalue=1, offvalue=0))
self.cButtons[i].grid(row=i, column=2, sticky = W)
Label(self, text=' Frequency:').grid(row=i, column=6)
#variable connects group of radios for slection/clear of group
#if value = variable this is default
self.rButtons1.append(Radiobutton(self, text=self.freqs[0], variable=self.var[i], value=self.val[(self.numFreqs*i)+0]))
self.rButtons1[i].grid(row=i, column=7, padx=5)
self.rButtons2.append(Radiobutton(self, text=self.freqs[1], variable=self.var[i], value=self.val[(self.numFreqs*i)+1]))
self.rButtons2[i].grid(row=i, column=8, padx=5)
self.rButtons3.append(Radiobutton(self, text=self.freqs[2], variable=self.var[i], value=self.val[(self.numFreqs*i)+2]))
self.rButtons3[i].grid(row=i, column=9, padx=5)
def main():
root = Tk()
app = GUI(root)
root.mainloop()
if __name__ == '__main__':
main()
答案 0 :(得分：1)
不完全确定您正在寻找有关此代码的帮助的问题，但我做了一些快速更改，应该使它更具功能性：
import tkinter as tk
from tkinter import *
class GUI(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.pack()
self.initUI()
def initUI(self):
# the 5Hz radio button should be selected as default
self.freqs=['1Hz','5Hz','10Hz']
self.numFreqs = len(self.freqs)
#val and var are set up to try to establish the defaults
#every 3 vals = 1 var therfore the middle val should = var
# val 0,1,2 = var 1 , val 3,4,5 = var 4 , val 6,7,8 = var 7
# this should allow the 5hz radiobutton to be default selected
self.val = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]
#You only really need to hold on to a reference to the IntVars, not the
# entire widgets. Declaring each "var" individually is also unneccesary
self.checkButtonVars = []
self.radioButtonsVars = []
self.textLbls = ['Choice 1', 'Choice 2', 'Choice 3','Choice 4','Choice 5']
#(your comment block)
valueIter = iter(self.val) #This will let us read the values 3 by 3
for i,lbl in enumerate(self.textLbls): #enumerate is a nice way to avoid range(len(x))
tempVals = [next(valueIter) for x in range(3)] #get the next 3 values
#make a variable for the new CheckBox (and append it to our list)
self.checkButtonVars.append(IntVar(value=0))
#make a variable for the new RadioButton group (and append it to our list)
self.radioButtonsVars.append(IntVar(value=tempVals[1]))
#Make the checkboxes, radiobuttons and label for the line.
Checkbutton(self, text=lbl, variable=self.checkButtonVars[i]).grid(row=i, column=2, sticky = W)
Label(self, text=' Frequency:').grid(row=i, column=6)
Radiobutton(self, text=self.freqs[0], variable=self.radioButtonsVars[i], value=tempVals[0]).grid(row=i, column=7, padx=5)
Radiobutton(self, text=self.freqs[1], variable=self.radioButtonsVars[i], value=tempVals[1]).grid(row=i, column=8, padx=5)
Radiobutton(self, text=self.freqs[2], variable=self.radioButtonsVars[i], value=tempVals[2]).grid(row=i, column=9, padx=5)
#I added a button to retrieve the values, this is just as a demo.
self.printButton = Button(self,text='Return values',command=self.printVals)
self.printButton.grid(row=i+1,column=8)
def getRadioVals(self,*args):
#returns the values in the radio buttons as a list
return [x.get() for x in self.radioButtonsVars]
def getCheckVals(self,*args):
#returns the values in the checkboxes as a list
return [x.get() for x in self.checkButtonVars]
def printVals(self,*args):
print('Radio Buttons: %s' %(self.getRadioVals()))
print('Check Buttons: %s' %(self.getCheckVals()))
def main():
root = Tk()
app = GUI(root)
root.mainloop()
if __name__ == '__main__':
main()
如果您可以更好地描述您遇到的具体问题，则可以解决这些问题。
另外，正如笔记：试图垂直显示256个无线电按钮可能会导致一些问题。据我所知，没有办法在标准tkinter中创建一个滚动的框架，因此你的窗口最终会比你的屏幕高很多。