从嵌套字典创建tkinter嵌套树形视图

import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.title("Nested Tree View")

tree = ttk.Treeview(root)
tree.pack()

def add_nested_items(parent, nested_dict):
    for key, value in nested_dict.items():
        if isinstance(value, dict):
            item = tree.insert(parent, "end", text=key)
            add_nested_items(item, value)
        else:
            tree.insert(parent, "end", text=key, values=(value,))

nested_dict = {
    "Category 1": {
        "Subcategory 1.1": {
            "Item 1.1.1": "Value 1.1.1",
            "Item 1.1.2": "Value 1.1.2"
        },
        "Subcategory 1.2": {
            "Item 1.2.1": "Value 1.2.1",
            "Item 1.2.2": "Value 1.2.2"
        }
    },
    "Category 2": {
        "Subcategory 2.1": {
            "Item 2.1.1": "Value 2.1.1",
            "Item 2.1.2": "Value 2.1.2"
        },
        "Subcategory 2.2": {
            "Item 2.2.1": "Value 2.2.1",
            "Item 2.2.2": "Value 2.2.2"
        }
    }
}

add_nested_items("", nested_dict)

root.mainloop()