我在畫布中創(chuàng)建了一個框架，通過單擊鼠標(biāo)在其中放置復(fù)選按鈕。選擇另一個單選按鈕，我運行命令 canvas.delete("all") 來清除畫布（以及帶有復(fù)選按鈕的框架），然后再次創(chuàng)建框架以繼續(xù)放置復(fù)選按鈕?？蚣芤褎?chuàng)建，但我無法再放置檢查按鈕（我也沒有收到錯誤消息）。有人知道為什么嗎？from tkinter import *root = Tk()top_canvas = Canvas(root,width=676,height=768, bg='light blue')top_canvas.pack()frame = Frame(top_canvas, bg='light grey')main_frame = top_canvas.create_window(500, 780, height = 1600, width = 600, window = frame)def place_checkbutton_in_canvas(e): # order to insert the checkbutton xx = e.x yy = e.y buttons = Checkbutton(frame) buttons.place(x=xx, y=yy)def place_checkbutton(): #to run when checkbutton is selected. Now the checkbutton will be placed where mouse clicked if choose_line is selected frame.bind('<Button-1>', place_checkbutton_in_canvas)def clear_canvas(): top_canvas.delete("all") frame = Frame(top_canvas, bg='magenta') main_frame = top_canvas.create_window(500, 780, height=1600, width=600, window=frame)chosen_option = IntVar()choose_checkbutton = Radiobutton(root, text = "place checkbutton", variable=chosen_option, value = 1, command = place_checkbutton)choose_checkbutton.place(x=10, y=10)clear_button = Radiobutton(root, text = "clear everything", variable=chosen_option, value = 2, command = clear_canvas)clear_button.place(x=10, y=100)root.mainloop()
在 canvas.delete("all") 之后在畫布中重用框架小部件不起作用
呼啦一陣風(fēng)
2023-07-05 16:15:32
