如何以编程方式选择单元格并检索Tkinter Treeview中的内容？

import tkinter as tk
from tkinter import ttk

def get_cell_content(event):
    # 获取选中的单元格
    selected_item = treeview.focus()
    selected_row = treeview.item(selected_item)
    values = selected_row['values']
    
    # 输出选中单元格的内容
    print(values)

root = tk.Tk()

# 创建Treeview
treeview = ttk.Treeview(root)
treeview.pack()

# 添加列
treeview['columns'] = ('column1', 'column2')

# 设置列的标题
treeview.heading('#0', text='ID')
treeview.heading('column1', text='Column 1')
treeview.heading('column2', text='Column 2')

# 添加数据
treeview.insert('', 'end', text='1', values=('Value 1', 'Value 2'))
treeview.insert('', 'end', text='2', values=('Value 3', 'Value 4'))

# 绑定事件
treeview.bind('<<TreeviewSelect>>', get_cell_content)

root.mainloop()