Python使用tkinter在滚动文本框中搜索下一个单词

import tkinter as tk

root = tk.Tk()
text_box = tk.Text(root)
text_box.pack()

search_entry = tk.Entry(root)
search_entry.pack()

search_button = tk.Button(root, text="搜索", command=search_next_word)
search_button.pack()

def search_next_word():
    search_word = search_entry.get()
    text = text_box.get("1.0", "end-1c")
    words = text.split()
    
    for i, word in enumerate(words):
        if word == search_word:
            start_index = f"{i+1}.0"
            end_index = f"{i+1}.{len(word)}"
            text_box.tag_add("search", start_index, end_index)
            text_box.tag_config("search", background="yellow")
            text_box.see(start_index)
            break

root.mainloop()