Python 当“tk.Scale”的值更改时,如何自动更新“tk.Label”?
我放入了框架比例,但我不确定如何在标签中显示此比例的值。每次天平移动时,我都需要更新它。我该怎么做Python 当“tk.Scale”的值更改时,如何自动更新“tk.Label”?,python,user-interface,tkinter,tkinter-scale,Python,User Interface,Tkinter,Tkinter Scale,我放入了框架比例,但我不确定如何在标签中显示此比例的值。每次天平移动时,我都需要更新它。我该怎么做 self.options_settings.framepripojeni6 = Frame(self.options_settings.tab1) self.options_settings.framepripojeni6.pack(side=tkinter.TOP, expand=0, fill=tkinter.BOTH, padx=2, pady=4) sel
self.options_settings.framepripojeni6 = Frame(self.options_settings.tab1)
self.options_settings.framepripojeni6.pack(side=tkinter.TOP, expand=0, fill=tkinter.BOTH, padx=2, pady=4)
self.options_settings.scale = Scale(self.options_settings.framepripojeni6,from_=1, to=60, length=350)
self.options_settings.scale.pack(side=tkinter.TOP)
self.options_settings.labelScale = tkinter.Label(self.options_settings.framepripojeni5, text="x")
self.options_settings.labelScale.pack(side=tkinter.LEFT)
如果比例和标签共享一个公共变量,则标签将自动更新。您可以调用变量的
set
方法来提供刻度的默认值
下面是一个简单的例子:
import tkinter as tk
root = tk.Tk()
scalevar = tk.IntVar()
scalevar.set(50)
scale = tk.Scale(root, from_=0, to=100,
variable=scalevar, orient="horizontal")
label = tk.Label(root, textvariable=scalevar)
scale.pack(side="top", fill="x", expand=True)
label.pack(side="top", fill="x", expand=True)
root.mainloop()
如果比例和标签共享一个公共变量,则标签将自动更新。您可以调用变量的
set
方法来提供刻度的默认值
下面是一个简单的例子:
import tkinter as tk
root = tk.Tk()
scalevar = tk.IntVar()
scalevar.set(50)
scale = tk.Scale(root, from_=0, to=100,
variable=scalevar, orient="horizontal")
label = tk.Label(root, textvariable=scalevar)
scale.pack(side="top", fill="x", expand=True)
label.pack(side="top", fill="x", expand=True)
root.mainloop()
是的,谢谢,在Python3.4中,我必须将tkinter与小T一起使用。谢谢,在Python3.4中,我必须将tkinter与小T一起使用