编写一个tk图文记事本，功能包含但不限于：图片插入、数学公式嵌入、代码嵌入、表格嵌入、文字修改、保存文件、高亮、选中字体颜色等

以下是一个简单的tk图文记事本的代码示例，实现了图片插入、数学公式嵌入、代码嵌入、表格嵌入、文字修改、保存文件、高亮、选中字体颜色等功能。注意，该示例中数学公式和代码的嵌入使用了LaTeX和Python语言，需要系统中安装了相关的软件包才能正常显示。

import tkinter as tk
from tkinter import filedialog
from tkinter import messagebox
import os
import re
from PIL import Image, ImageTk
import tkinter.scrolledtext as tkst
import sympy as sp
from sympy import *
from pygments import highlight
from pygments.lexers import PythonLexer
from pygments.formatters import HtmlFormatter

class TextEditor:
    def __init__(self, master):
        self.master = master
        self.master.title("图文记事本")
        self.master.geometry("800x600")

        # 初始化菜单栏
        self.menubar = tk.Menu(self.master)

        self.filemenu = tk.Menu(self.menubar, tearoff=0)
        self.filemenu.add_command(label="新建", command=self.new_file)
        self.filemenu.add_command(label="打开", command=self.open_file)
        self.filemenu.add_command(label="保存", command=self.save_file)
        self.filemenu.add_command(label="另存为", command=self.save_file_as)
        self.filemenu.add_separator()
        self.filemenu.add_command(label="退出", command=self.quit)
        self.menubar.add_cascade(label="文件", menu=self.filemenu)

        self.editmenu = tk.Menu(self.menubar, tearoff=0)
        self.editmenu.add_command(label="撤销", command=self.undo)
        self.editmenu.add_command(label="重做", command=self.redo)
        self.editmenu.add_separator()
        self.editmenu.add_command(label="剪切", command=self.cut)
        self.editmenu.add_command(label="复制", command=self.copy)
        self.editmenu.add_command(label="粘贴", command=self.paste)
        self.editmenu.add_separator()
        self.editmenu.add_command(label="查找", command=self.find)
        self.editmenu.add_command(label="替换", command=self.replace)
        self.menubar.add_cascade(label="编辑", menu=self.editmenu)

        self.insertmenu = tk.Menu(self.menubar, tearoff=0)
        self.insertmenu.add_command(label="插入图片", command=self.insert_image)
        self.insertmenu.add_command(label="插入数学公式", command=self.insert_formula)
        self.insertmenu.add_command(label="插入代码", command=self.insert_code)
        self.insertmenu.add_command(label="插入表格", command=self.insert_table)
        self.menubar.add_cascade(label="插入", menu=self.insertmenu)

        self.formatmenu = tk.Menu(self.menubar, tearoff=0)
        self.formatmenu.add_command(label="字体颜色", command=self.font_color)
        self.formatmenu.add_command(label="高亮", command=self.highlight)
        self.menubar.add_cascade(label="格式", menu=self.formatmenu)

        self.master.config(menu=self.menubar)

        # 初始化文本框
        self.text = tkst.ScrolledText(self.master, undo=True)
        self.text.pack(fill="both", expand=True)

    def new_file(self):
        self.text.delete("1.0", "end")

    def open_file(self):
        file_path = filedialog.askopenfilename(defaultextension=".txt", filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")])
        if file_path:
            self.text.delete("1.0", "end")
            with open(file_path, "r") as f:
                self.text.insert("1.0", f.read())
            self.master.title(os.path.basename(file_path) + " - 图文记事本")

    def save_file(self):
        file_path = getattr(self, "file_path", None)
        if not file_path:
            self.save_file_as()
        else:
            with open(file_path, "w") as f:
                f.write(self.text.get("1.0", "end"))
            messagebox.showinfo("保存文件", "文件已保存！")

    def save_file_as(self):
        file_path = filedialog.asksaveasfilename(defaultextension=".txt", filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")])
        if file_path:
            self.file_path = file_path
            self.save_file()

    def quit(self):
        self.master.quit()

    def undo(self):
        try:
            self.text.edit_undo()
        except:
            pass

    def redo(self):
        try:
            self.text.edit_redo()
        except:
            pass

    def cut(self):
        self.text.event_generate("<<Cut>>")

    def copy(self):
        self.text.event_generate("<<Copy>>")

    def paste(self):
        self.text.event_generate("<<Paste>>")

    def find(self):
        target = simpledialog.askstring("查找", "查找：")
        if target:
            start = self.text.search(target, "1.0", "end")
            if start:
                end = start + f"+{len(target)}c"
                self.text.tag_remove("highlight", "1.0", "end")
                self.text.tag_add("highlight", start, end)
                self.text.mark_set("insert", start)
                self.text.see(start)
                self.text.focus()

    def replace(self):
        target = simpledialog.askstring("替换", "查找：")
        if target:
            replace = simpledialog.askstring("替换", "替换为：")
            if replace:
                start = self.text.search(target, "1.0", "end")
                if start:
                    end = start + f"+{len(target)}c"
                    self.text.delete(start, end)
                    self.text.insert(start, replace)

    def insert_image(self):
        file_path = filedialog.askopenfilename(defaultextension=".png", filetypes=[("Image Files", "*.png;*.jpg"), ("All Files", "*.*")])
        if file_path:
            img = Image.open(file_path)
            img = img.resize((300, 300))
            photo = ImageTk.PhotoImage(img)
            self.text.image_create("insert", image=photo)

    def insert_formula(self):
        formula = simpledialog.askstring("插入数学公式", "数学公式：")
        if formula:
            sp.init_printing(use_unicode=True)
            sp_formula = sp.latex(sp.sympify(formula))
            self.text.insert("insert", f"$${sp_formula}$$")

    def insert_code(self):
        code = simpledialog.askstring("插入代码", "代码：")
        if code:
            html_code = highlight(code, PythonLexer(), HtmlFormatter())
            self.text.insert("insert", f"<pre>{html_code}</pre>")

    def insert_table(self):
        rows = simpledialog.askinteger("插入表格", "行数：", initialvalue=2)
        cols = simpledialog.askinteger("插入表格", "列数：", initialvalue=2)
        if rows and cols:
            table = "<table>"
            for i in range(rows):
                table += "<tr>"
                for j in range(cols):
                    table += "<td></td>"
                table += "</tr>"
            table += "</table>"
            self.text.insert("insert", table)

    def font_color(self):
        color = colorchooser.askcolor()[1]
        self.text.tag_add("font_color", "sel.first", "sel.last")
        self.text.tag_config("font_color", foreground=color)

    def highlight(self):
        self.text.tag_add("highlight", "sel.first", "sel.last")

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

需要注意的是，在这个示例中，我们使用了`tkinter.scrolledtext`模块来创建一个带有滚动条的文本框。此外，我们还使用了`pygments`模块来将代码转换为HTML格式，以便在文本框中显示。如果您希望使用这个示例，需要确保您的系统中安装了`Pillow`、`tkinter`、`sympy`和`pygments`等必要的软件包。