如何使用Tkinter导入索引列为"date“的csv文件

import tkinter as tk
import csv

window = tk.Tk()
window.title("CSV文件导入")

def open_file():
    file_path = tk.filedialog.askopenfilename(filetypes=[("CSV Files", "*.csv")])
    import_csv(file_path)

btn_open = tk.Button(window, text="选择CSV文件", command=open_file)
btn_open.pack()

def import_csv(file_path):
    with open(file_path, "r") as file:
        reader = csv.DictReader(file)
        for row in reader:
            date = row["date"]
            # 在此处可以对日期数据进行处理，如打印、保存到数据库等
            print(date)

window.mainloop()