import tkinter as tk
import webbrowser

def open_browser():
    selected_option = dropdown.get()
    
    if selected_option == "Google":
        webbrowser.open("https://www.google.com")
    elif selected_option == "Bing":
        webbrowser.open("https://www.bing.com")
    elif selected_option == "Yahoo":
        webbrowser.open("https://www.yahoo.com")
    # 添加更多选项和对应的URL
    
root = tk.Tk()

dropdown = tk.StringVar(root)
dropdown.set("Select an option")
options = ["Google", "Bing", "Yahoo"]  # 添加更多选项

dropdown_menu = tk.OptionMenu(root, dropdown, *options)
dropdown_menu.pack()

button = tk.Button(root, text="Open Browser", command=open_browser)
button.pack()

root.mainloop()