Question

以下是我遇到的整个程序的一部分。问题在于Tkinter Checkbuttons的用法。我正在尝试创建一个程序，该程序采用用户选择的操作列表，并根据“操作员”的数量，创建检查按钮，可以对其进行检查以识别由哪个操作员执行的操作，并通过相应检查按钮的状态进行标识州。但是不幸的是，我得到的唯一答复是我相信使用IntVar（）导致的错误代码，

以下是以下代码的输出：

Tkinter.IntVar实例位于0x000000000EE332C8

所需的输出for this image本质上是下面的块引用

中显示的内容

变量状态= 1，Op1，操作员1

import Tkinter
import Tkinter as tk
from Tkinter import *


class Application(tk.Frame):
    def __init__(self, master=None):
        self.createWidgets()

    def createWidgets(self):

        operator = int(6) #assigned for testing
        lookingFor = ['op1','op2','op3','op4'] #assigned for testing
        self.checkList = [] #creating an empty list to store Checkbox variables

        cx,cy=0,0
        for x in range(0, operator):  ##creating left Lables
            cy+=1
            cx+=1
            label = Label(root)
            labelName = 'Operator#'
            label["text"] = str(labelName)+str(cy)
            label.grid(row=cx+1,column=0)

        cx,cy=0,0
        for y in lookingFor:   ##creating top labels
            cy+=1
            label = Label(root)
            label["text"] = str(y)
            label.grid(row=cx+1,column=cy)

        cx,cy=0,0
        for y in range(0, operator):
            cx+=1
            for x in lookingFor: #creating checkboxes
                var = IntVar()
                c = Checkbutton(root, variable = var)
                cy+=1
                c.grid(row=cx+1,column=cy)
                self.checkList.append(var)

            cy=0

        self.button = Button(root)
        self.button["text"] = 'Done'
        self.button["command"] = self.states
        self.button.grid(row=0,column=0)

    def states(self):
        #This function should print out the state of each button
        #as well as its corresponding 'Op#' and 'operator#'
        #So the program can later decide which operations are performed
        #when the program passes through each operator
        print (self.checkList) 


root = tk.Tk()
app = Application(master=root)
root.attributes('-topmost', True)
x=10
y=5
root.geometry("+%d+%d" % (x, y))
root.mainloop()

Answer 1

首先，您得到的打印输出不是错误代码。如果直接打印IntVar对象，则会得到该值，但是如果要打印存储在IntVar中的值，则需要调用get()方法。

现在，按照您的要求获取详细的输出格式，您可以为每个运算符使用类似的列表清单。

class Application(Frame):
    def __init__(self, master=None):
        self.createWidgets()

    def createWidgets(self):

        operator = int(6) #assigned for testing
        lookingFor = ['op1','op2','op3','op4'] #assigned for testing
        self.checkList = [[] for idx in range(operator)] #creating an empty list of lists to store Checkbox variables

        cx,cy=0,0
        for x in range(0, operator):  ##creating left Lables
            cy+=1
            cx+=1
            label = Label(root)
            labelName = 'Operator#'
            label["text"] = str(labelName)+str(cy)
            label.grid(row=cx+1,column=0)

        cx,cy=0,0
        for y in lookingFor:   ##creating top labels
            cy+=1
            label = Label(root)
            label["text"] = str(y)
            label.grid(row=cx+1,column=cy)

        cx,cy=0,0
        for y in range(0, operator):
            cx+=1
            for x in lookingFor: #creating checkboxes
                var = IntVar()
                c = Checkbutton(root, variable = var)
                cy+=1
                c.grid(row=cx+1,column=cy)
                self.checkList[y].append(var)

            cy=0

        self.button = Button(root)
        self.button["text"] = 'Done'
        self.button["command"] = self.states
        self.button.grid(row=0,column=0)

    def states(self):
        #This function should print out the state of each button
        #as well as its corresponding 'Op#' and 'operator#'
        #So the program can later decide which operations are performed
        #when the program passes through each operator
        for i, lst in enumerate(self.checkList, 1):
            for j, op in enumerate(lst, 1):
                print("Variable status = {}, Op{}, operator#{}".format(op.get(), j, i))

打印输出如下：

Variable status = 1, Op1, operator#1
Variable status = 0, Op2, operator#1
Variable status = 0, Op3, operator#1
Variable status = 0, Op4, operator#1
Variable status = 0, Op1, operator#2
Variable status = 1, Op2, operator#2
Variable status = 0, Op3, operator#2
Variable status = 0, Op4, operator#2
Variable status = 0, Op1, operator#3
Variable status = 0, Op2, operator#3
Variable status = 0, Op3, operator#3
Variable status = 1, Op4, operator#3
Variable status = 0, Op1, operator#4
Variable status = 0, Op2, operator#4
Variable status = 0, Op3, operator#4
Variable status = 1, Op4, operator#4
Variable status = 0, Op1, operator#5
Variable status = 0, Op2, operator#5
Variable status = 0, Op3, operator#5
Variable status = 0, Op4, operator#5
Variable status = 0, Op1, operator#6
Variable status = 1, Op2, operator#6
Variable status = 0, Op3, operator#6
Variable status = 0, Op4, operator#6

如何将复选按钮变量正确存储在列表中，以便在程序的后续功能中进行标识？

1 个答案: