tkinter 实现选择文件夹或者多个文件

import tkinter as tk
from tkinter import filedialog
def select_file():
    # 单个文件选择
    selected_file_path = filedialog.askopenfilename()  # 使用askopenfilename函数选择单个文件
    select_path.set(selected_file_path)
def select_files():
    # 多个文件选择
    selected_files_path = filedialog.askopenfilenames()  # askopenfilenames函数选择多个文件
    select_path.set('\n'.join(selected_files_path))  # 多个文件的路径用换行符隔开
def select_folder():
    # 文件夹选择
    selected_folder = filedialog.askdirectory()  # 使用askdirectory函数选择文件夹
    select_path.set(selected_folder)

root = tk.Tk()
root.title("选择文件或文件夹，得到路径")
# 初始化Entry控件的textvariable属性值
select_path = tk.StringVar()
# 布局控件
tk.Label(root, text="文件路径：").grid(column=0, row=0, rowspan=3)
tk.Entry(root, textvariable = select_path).grid(column=1, row=0, rowspan=3)
tk.Button(root, text="选择单个文件", command=select_file).grid(row=0, column=2)
tk.Button(root, text="选择多个文件", command=select_files).grid(row=1, column=2)
tk.Button(root, text="选择文件夹", command=select_folder).grid(row=2, column=2)
root.mainloop()