如何在 tkinter 中将 label 文本与 label 值并排保存

Question

I am trying to keep the label text value: "This is the subtotal" next to subtotal value. Meaning:

If I were to click on the "Calulate Subtotal" Button the text "This is the subtotal" should be to the right and the actual subtotal should be to the left. Currently, If I were to click on the "Calulate Subtotal" Button the text "this is the subtotal" disappears. Can someone steer me in the right direction?

try:
import Tkinter as tk
except:
  import tkinter as tk

class GetInterfaceValues():
    def __init__(self):
    self.root = tk.Tk()
    self.root.geometry('500x200')
    self.button = tk.Button(self.root,
                            text='Calculate Subtotal',
                            command=self.getSubtotals)
    self.button.pack()

    self.firstLabel = tk.Label(self.root, text="This is the subtotal:")

    self.firstLabel.pack()

    self.root.mainloop()

def getSubtotals(self):
    self.firstLabel["text"] = 55*10



 app = GetInterfaceValues()

Answer 1

You can simply change your getSubtotals method to retain the current text of firstLabel as the following:

def getSubtotals(self):
    self.firstLabel["text"] = self.firstLabel["text"] + str(55 * 10)

Couple of suggestions:

• You might want to create another widget to show subtotal value other than firstLabel .
• You might want to restructure your class so that you only initialize the attributes in the init method
• Please check the indentations and code formatting when asking questions to make it easier for others to inspect your code