如何将 tkinter Scale 小部件滑块的默认值设置为 100？

Question

如何将滑块的默认值设置为 100 ？

self.slider = tk.Scale(self.leftFrame, from_=0, to=256, orient=tk.HORIZONTAL, command=updateValue)

Answer 1

cursor=100 ?

If that doesn't work, you can always manually self.slider.set(100) .

Answer 2

1. Set

Use the set method 1 2 : self.scale.set(100)

2. Variable

Use the variable option 3 4 to assign a Variable 5 6 7

self.scale_var = DoubleVar()
self.scale_var.set(1)
self.scale = tk.Scale(self.leftFrame, from_=0, to=256, orient=tk.HORIZONTAL,
    command=updateValue, variable=self.scale_var)