如何使用python tkinter将复选框选择输出到框架中？

import tkinter as tk

def show_selected():
    selected_options = []
    for i, var in enumerate(checkbox_vars):
        if var.get() == 1:
            selected_options.append(checkbox_texts[i])
    output_label.config(text="Selected options: " + ", ".join(selected_options))

root = tk.Tk()
root.title("Checkbox Example")

# 创建复选框的文本和变量
checkbox_texts = ["Option 1", "Option 2", "Option 3"]
checkbox_vars = []
for text in checkbox_texts:
    var = tk.IntVar()
    checkbox_vars.append(var)

# 创建复选框并放置到框架中
checkbox_frame = tk.Frame(root)
checkbox_frame.pack()
for i, text in enumerate(checkbox_texts):
    checkbox = tk.Checkbutton(checkbox_frame, text=text, variable=checkbox_vars[i])
    checkbox.pack(anchor=tk.W)

# 创建按钮和输出标签
button = tk.Button(root, text="Show Selected", command=show_selected)
button.pack()
output_label = tk.Label(root, text="")
output_label.pack()

root.mainloop()