如何在tkinter上更新标签 [英] How to update label on tkinter
本文介绍了如何在tkinter上更新标签的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
按一下其中一个按钮后,我想更新标签.
这是我的代码-我添加了一个标签(标为label1
),现在有两个问题:
I would like to update a label once I press one of the buttons.
Here is my code - I added a label (caled label1
), now I have two issues:
- 有一些乱七八糟的东西
- 当用户按下浏览"按钮时,如何立即用文本更新标签?
from tkinter import *
import threading
class Window(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.master = master
self.init_window()
def init_window(self):
self.var = IntVar()
self.master.title("GUI")
self.pack(fill=BOTH, expand=1)
quitButton = Button(self, text="Exit", command=self.client_exit)
startButton = Button(self, text="Browse", command=self.start_Button)
label1 = Label(self, text=self.lable_1)
quitButton.grid(row=0, column=0)
startButton.grid(row=0, column=2)
label1.grid(row=1, column=0)
def client_exit(self):
exit()
def lable_1(self):
print('starting')
def start_Button(self):
def f():
print('Program is starting')
t = threading.Thread(target=f)
t.start()
root = Tk()
root.geometry("250x50")
app = Window(root)
root.title("My Program")
root.mainloop()
推荐答案
使用self.label['text']
更改文本
(最少?)工作示例:
import tkinter as tk
class Window(tk.Frame):
def __init__(self, master=None):
tk.Frame.__init__(self, master)
# tk.Frame.__init__ creates self.master so you don't have to
#self.master = master
self.init_window()
def init_window(self):
self.pack(fill=tk.BOTH, expand=1)
quit_button = tk.Button(self, text="Exit", command=root.destroy)
start_button = tk.Button(self, text="Browse", command=self.on_click)
self.label = tk.Label(self, text="Hello")
quit_button.grid(row=0, column=0)
start_button.grid(row=0, column=1)
self.label.grid(row=1, column=0, columnspan=2)
def on_click(self):
self.label['text'] = "Starting..."
root = tk.Tk()
app = Window(root)
root.mainloop()
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