我创建了一个页面来显示历史记录，并创建了两个框架来显示2种不同的搜索和下载历史记录，但是当我将所有历史记录都保留在一页上时，要么将其清除，要么将其清除，或者它本身并没有被破坏
class History:
def __init__(self,histf):
self.hframe = histf
self.chosen = None
self.ldown = False
self.lhist = False
self.create_nbar()
self.table = None
self.shframe = Frame(self.hframe,bg='#ffffff',bd=2)
self.shframe.place(rely = 0.25 ,relx = 0,relwidth = 1 , relheight =
0.73)
self.dhframe = Frame(self.hframe,bg='#ffffff',bd=2)
self.dhframe.place(rely = 0.25 ,relx = 0,relwidth = 1 , relheight =
0.73)
self.load_sh()
def next_step(self,parent):
self.canvas = Canvas(parent,bg = 'blue',bd = 0,highlightthickness
= 0)
self.canvas.place(rely = 0 ,relx = 0.10 ,relwidth = 0.78 ,
relheight = 1)
self.vbar = Scrollbar(parent, orient = 'vertical',bg='green')
self.vbar.pack(side='right',fill='y')
self.vbar.config(command = self.canvas.yview)
self.canvas.configure(yscrollcommand=self.vbar.set)
self.rframe = Frame(self.canvas,bg='red' )
self.rframe.place(relx=0.0,rely=0,relwidth=1,relheight = 1)
self.canvas_frame=self.canvas.create_window((0,0),
window=self.rframe, anchor="nw",tags="self.rframe")
self.rframe.bind("<Configure>", self.onFrameConfigure)
self.canvas.bind('<Configure>', self.update)
self.bind_mouse_scroll(self.canvas, self.yscroll)
self.bind_mouse_scroll(self.vbar, self.yscroll)
def update(self, event):
height = event.height
print(height)
self.vbar.config(command = self.canvas.yview)
def onFrameConfigure(self, event=None):
'''Reset the scroll region to encompass the inner frame'''
print('updating canvas thro7ugh rframe')
print(self.canvas.bbox('all'))
self.rframe.update()
s =self.rframe.winfo_height()
print(s)
self.canvas.configure(height = s)
self.canvas.update()
self.canvas.configure(scrollregion=self.canvas.bbox("all"))
我用以下代码清除了它：
def clear_rframe(self):
print('destruction begin')
for i in self.rframe.winfo_children():
print(f'destroyed : {i}')
i.destroy()
self.rframe.update_idletasks()
if self.table == 'search':
self.hframe.update_idletasks()
else:
self.dhframe.update_idletasks()