tkinter实现页面切换

import tkinter as tk class Index(tk.Frame): def __init__(self,parent=None): super().__init__(parent) self.pack(expand=1,fill="both") self.frame_left = tk.Frame(self) self.frame_left.pack(side='left',expand=1,fill="x",padx=5,pady=5) #三个按钮用于切换页面 for i in ["增加","删除","撤销"]: but = tk.Button(self.frame_left,text=i) but.pack(side='top',expand=1,fill="y") but.bind("<Button-1>",self.change) #用于承载切换的页面内容 self.frame_right=tk.Frame(self) self.frame_right.pack(side='left',expand=1,fill="both",padx=5,pady=5) lab = tk.Label(self.frame_right,text="我是第一个页面") lab.pack() #根据鼠标左键单击事件，切换页面 def change(self,event): res = event.widget["text"] for i in self.frame_right.winfo_children(): i.destroy() if res == "增加": Page1(self.frame_right) elif res == "删除": Page2(self.frame_right) elif res == "撤销": Page3(self.frame_right) class Page1(tk.Frame): def __init__(self,parent=None): super().__init__(parent) self.pack(expand=1,fill="both") tk.Label(self,text="我是page1").pack() class Page2(tk.Frame): def __init__(self,parent=None): super().__init__(parent) self.pack(expand=1,fill="both") tk.Label(self,text="我是page2").pack() class Page3(tk.Frame): def __init__(self,parent=None): super().__init__(parent) self.pack(expand=1,fill="both") tk.Label(self,text="我是page3").pack() if __name__ == "__main__": root = tk.Tk() root.title("界面演示") index = Index(root) root.mainloop()