如何从同一类的不同实例中访问类成员函数？Python

Question

我的问题是我的tkinter应用程序。我有一个按钮用于折叠应用程序的一部分，但是如果我单击左边的每个按钮，我必须按折叠按钮7次，以除去在createArea成员函数中首先创建的应用程序右侧的所有实例

我已经将类的每个实例存储在一个名为dictionary的字典中，我需要destroyRight函数销毁每个实例中应用程序的所有右侧

我不确定如何访问存储在字典中的每个类实例的函数，也不确定如何使一个类的一个实例与所有其他实例通信

非常感谢您的帮助

Image of my application

from tkinter import*

root = Tk()
class Buttons:
    def __init__(self,master,imperialText,metricText,metricVal):
        self.imperialText,self.metricText,self.metricVal,self.master = imperialText,metricText,metricVal,master

        self.displayedText  = (self.imperialText +'-'+ self.metricText)
        self.button = Button(self.master,text= self.displayedText,command = self.createArea)
        self.button.config(height= 3,width=30)
        self.button.grid(column = 0)

        self.rightCreated = False
        self.rightButtons = []
    def createArea(self):
        self.rightCreated = True
        self.entryBox = Entry(self.master)
        self.entryBox.bind('<Return>',self.calc)
        self.entryBox.grid(column = 1,row = 1)

        self.label = Label(self.master,text = 'Enter '+self.imperialText)
        self.label.grid(column = 1,row = 0)

        self.backButton = Button(self.master,text = '<<Collapse', command = self.destroyRight)
        self.backButton.grid(column = 1, row = 6)

        print('happen') 
        self.rightButtons.extend([self.entryBox,self.label,self.backButton])

    def destroyRight(self):
        collapseAll()
        print(self.rightButtons)
        for i in self.rightButtons:
            i.destroy()


    def calc(self):
        print('hi')

def collapseAll():
    for i in dictionary:
        dictionary[i].destroyRight()




dictionary = {'B1':None,'B2':None,'B3':None,'B4':None,'B5':None,'B6':None,'B7':None}
ImperialText = ['inches','miles','foot','yards','gallons','pounds','ounces']
MetricText = ['centimetres','kilometres','metres','metres','litres','kilograms','grams']
metricVal = [2.54,1.6093,0.3048,0.9144,4.546,0.454,0.454]

num = 0
for i in dictionary:
dictionary[i] = 
Buttons(root,ImperialText[num],MetricText[num],metricVal[num])
    num += 1
    if num == 6:
        print(i)

root.mainloop()

Answer 1

你所要做的就是dictionary['B1'].calc()，它访问字典中的第一个按钮并调用calc方法