python3使用tkinter做界面之拆分窗口（SplitWindow）

from tkinter import *
from idlelib.tabbedpages import *


class MainFrame(Frame):
    def __init__ (self, master=None, cnf={}, **kw):
        self.master = master
        super(MainFrame,self).__init__(self.master,cnf)
        
        # create a menu
        self.mmenu = Menu(root)
        self.master.config(menu=self.mmenu)


        self.master.rowconfigure( 0, weight = 1 )
        self.master.columnconfigure( 0, weight = 1 )
        self.grid( sticky = W+E+N+S )


        self.BottomLabel = Label(self.master,text='top',width=1,bg='Blue')
        self.BottomLabel.pack(side=TOP, expand=NO,fill=X)


        self.BottomLabel = Label(self.master,text='bottom',width=1,bg='Blue')
        self.BottomLabel.pack(side=BOTTOM, expand=NO,fill=X)


        self.LeftCanv = Canvas(self.master, bg='Blue',width = 175, height = 30 )
        self.LeftCanv.pack(side=LEFT, expand=NO,fill=Y)# padx=10, pady=5, ipadx=5, ipady=5,
        #self.LeftCanv.grid( row = 0, column = 0, sticky = W+E+N+S )
        #self.tabPage=TabbedPageSet(self.master, page_names=['Foobar','Baz'], n_rows=0,
        #                  expand_tabs=False#,width = 175, height = 30 
        #                  )
        #self.tabPage.pack(side=LEFT, expand=NO, fill=BOTH)


        self.MidLabel = Label(self.master,text='',width=0, cursor='sb_h_double_arrow')
        self.MidLabel.pack(side=LEFT, expand=NO,fill=Y)
        self.MidLabel.bind("", self.SetLeftCanvSize)


        self.RightCanv = Canvas(self.master, bg='Pink')
        self.RightCanv.pack(side=RIGHT, expand=YES, fill=BOTH)
        obj1 = self.RightCanv.create_text(50, 30, text='Click me one')
        #self.RightCanv.grid( row=0, column=1, sticky = W+E+N+S )
        
        self.AddMenu()
    def AddMenu (self):
        filemenu = Menu(self.mmenu)
        filemenu.add_command(label="New", command=self.quit)
        filemenu.add_command(label="Open...", command=self.quit)
        filemenu.add_separator()
        filemenu.add_command(label="Exit", command=self.quit)
        self.mmenu.add_cascade(label="File", menu=filemenu)


        configmenu = Menu(self.mmenu)
        configmenu.add_command(label="我的设置", command=self.quit)
        self.mmenu.add_cascade(label="设置", menu=configmenu)


    def SetLeftCanvSize (self, event):
        self.LeftCanv.config(width=self.LeftCanv.winfo_width()+event.x-7)
        #self.tabPage.config(width=self.tabPage.winfo_width()+event.x-7)
    def __del__ (self):
        print('退出')


if __name__=='__main__':
    root = Tk()
    MF = MainFrame(root, width = 800, height = 600)
    MF.pack()
    root.mainloop()