如何为tkinter文本框创建“自调整”书签

import tkinter as tk

root = tk.Tk()

text_box = tk.Text(root, width=40, height=10, font=("Arial", 12))
text_box.pack()

def adjust_bookmark(event):
    text = text_box.get("1.0", "end-1c")  # 获取文本框内容
    lines = text.split("\n")  # 将文本按行分割

    # 清除之前的书签
    text_box.tag_delete("bookmark")

    # 遍历每一行，检查是否需要添加书签
    for i, line in enumerate(lines):
        if line.startswith("##"):  # 判断是否为书签行，可以根据实际需求修改判断条件
            start_index = f"{i+1}.0"
            end_index = f"{i+1}.end"
            text_box.tag_add("bookmark", start_index, end_index)  # 添加书签标签

    # 配置书签样式
    text_box.tag_configure("bookmark", background="yellow", foreground="black")

text_box.bind("<<Modified>>", adjust_bookmark)

root.mainloop()