import tkinter as tk  
  
class App:  
    def __init__(self, root):  
        self.root = root  
        self.root.title("导航栏与局部页面切换")  
        self.root.geometry('800x500')
        self.root.minsize(width=800, height=300)
  
        # 创建导航栏  
        self.navbar = tk.Frame(self.root, bg='gray')  
        self.navbar.pack(fill=tk.BOTH, side=tk.TOP)  
  
        # 导航栏按钮  
        self.btn_page1 = tk.Button(self.navbar, bg='#ffffff', fg='#000000', text="页面1", command=self.show_page1)  
        self.btn_page2 = tk.Button(self.navbar, bg='#ffffff', fg='#000000', text="页面2", command=self.show_page2) 
        self.btn_page3 = tk.Button(self.navbar, bg='#ffffff', fg='#000000', text="页面3", command=self.show_page3)  
        self.btn_page4 = tk.Button(self.navbar, bg='#ffffff', fg='#000000', text="页面4", command=self.show_page4)  
		
		# 设置一行上的4个列，weight 是长度权重，这里设置为权重一样就是等长
        self.navbar.columnconfigure(0, weight=1)
        self.navbar.columnconfigure(1, weight=1)
        self.navbar.columnconfigure(2, weight=1)
        self.navbar.columnconfigure(3, weight=1)
        
        # row 行号,column 列号
		# sticky 指定了当网格的大小改变时，按钮将如何对齐。
		# "ew"代表"east and west"，
		# 意味着按钮将填充其分配的行和列空间，从东（右）和西（左）两个方向填充。
        self.btn_page1.grid(row=0, column=0, sticky="ew")
        self.btn_page2.grid(row=0, column=1, sticky="ew")
        self.btn_page3.grid(row=0, column=2, sticky="ew")
        self.btn_page4.grid(row=0, column=3, sticky="ew")
        # 局部页面容器  
        self.content_frame = tk.Frame(self.root)  
        self.content_frame.pack(fill=tk.BOTH, expand=True)  
  
        # 页面内容  
        self.page1 = tk.Frame(self.content_frame, bg='#ffffff')  
        self.page2 = tk.Frame(self.content_frame, bg='#ffffff')
        self.page3 = tk.Frame(self.content_frame, bg='#ffffff')
        self.page4 = tk.Frame(self.content_frame, bg='#ffffff')
        # 自己加的标签
        self.label1 = tk.Label(self.page1, text="页面1", bg='yellow', fg='#000000', font=('微软雅黑', 16)).pack()
        self.label2 = tk.Label(self.page2, text="页面2", bg='yellow', fg='#000000', font=('微软雅黑', 16)).pack()
        self.label3 = tk.Label(self.page3, text="页面3", bg='yellow', fg='#000000', font=('微软雅黑', 16)).pack()
        self.label4 = tk.Label(self.page4, text="页面4", bg='yellow', fg='#000000', font=('微软雅黑', 16)).pack()
  
        # 初始显示页面1  
        self.show_page1()  
  
    def show_page1(self):  
        self.page1.pack(fill=tk.BOTH, expand=True)  
        self.btn_page1.config(fg='red')
        self.btn_page2.config(fg='#000000')
        self.btn_page3.config(fg='#000000')
        self.btn_page4.config(fg='#000000')
        self.page2.pack_forget()  # 隐藏页面2  
        self.page3.pack_forget()
        self.page4.pack_forget()
  
    def show_page2(self):  
        self.page2.pack(fill=tk.BOTH, expand=True)  
        self.btn_page2.config(fg='red')
        self.btn_page1.config(fg='#000000')
        self.btn_page3.config(fg='#000000')
        self.btn_page4.config(fg='#000000')
        self.page1.pack_forget()  # 隐藏页面1  
        self.page3.pack_forget()
        self.page4.pack_forget()


    def show_page3(self):  
        self.page3.pack(fill=tk.BOTH, expand=True)  
        self.btn_page3.config(fg='red')
        self.btn_page1.config(fg='#000000')
        self.btn_page2.config(fg='#000000')
        self.btn_page4.config(fg='#000000')
        self.page1.pack_forget()  # 隐藏页面1  
        self.page2.pack_forget()
        self.page4.pack_forget()



    def show_page4(self):  
        self.page4.pack(fill=tk.BOTH, expand=True) 
        self.btn_page4.config(fg='red')
        self.btn_page1.config(fg='#000000')
        self.btn_page2.config(fg='#000000')
        self.btn_page3.config(fg='#000000')
        self.page1.pack_forget()  # 隐藏页面1  
        self.page3.pack_forget()
        self.page2.pack_forget()


if __name__ == "__main__":  
    root = tk.Tk()  
    app = App(root)  
    root.mainloop()

效果展示：