PythonGUI：tkinter隐藏和“销毁”控件

╰+哭是因爲堅強的太久メ 2023-02-11 04:36 10阅读 0赞

pack布局的情况下有pack\_forget()方法让控件“不再显示”但控件还存在可以再次pack出来

实例，不难

from tkinter import *
    
    root = Tk()
    
    l1 = Label(root, text='pack_forget')
    b3 = Button(root, text='按钮')
    
    b1 = Button(root, text='隐藏', command=b3.pack_forget)
    b2 = Button(root, text='显示', command=b3.pack)
    
    l1.pack(fill=X)
    b1.pack(fill=X)
    b2.pack(fill=X)
    b3.pack()
    
    root.mainloop()

![在这里插入图片描述][aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDE0MjA1NzE1OC03MjcxMDE1MTUuZ2lm]  
grid，place布局下也有对应的grid\_forget()，place\_forget()

这个控件只是不再显示，但依然存在 在内存里 ！！

--------------------

还有一个destroy()，但是这个是“销毁”，是无法重现的

除非控件不再用了，或者是想释放内存，否则不要destroy

from tkinter import *
    
    root = Tk()
    
    button_list = []
    
    
    def add_button():
        b = Button(root, text='按钮')
        b.pack(fill=X)
        button_list.append(b)
    
    
    def reduce_button():
        if button_list:
            b = button_list.pop()
            # b.pack_forget()
            b.destroy()
    
    
    b1 = Button(root, text='添加按钮', command=add_button)
    b2 = Button(root, text='减少按钮', command=reduce_button)
    
    b1.pack()
    b2.pack()
    
    root.mainloop()

![在这里插入图片描述][aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDEzMjUzMjU0OC0xMzY2NDk4OTQzLmdpZg]

[aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDE0MjA1NzE1OC03MjcxMDE1MTUuZ2lm]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDE0MjA1NzE1OC03MjcxMDE1MTUuZ2lm
[aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDEzMjUzMjU0OC0xMzY2NDk4OTQzLmdpZg]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTI4NzY5MS8yMDE5MDMvMTI4NzY5MS0yMDE5MDMyNDEzMjUzMjU0OC0xMzY2NDk4OTQzLmdpZg