import os


def print_tree(root, prefix=""):
    items = sorted(
        name for name in os.listdir(root)
        if name != "__pycache__"
    )
    total = len(items)

    for i, name in enumerate(items):
        path = os.path.join(root, name)
        is_last = (i == total - 1)

        connector = "└── " if is_last else "├── "
        print(prefix + connector + name)

        if os.path.isdir(path):
            extension = "    " if is_last else "│   "
            print_tree(path, prefix + extension)


root_dir = r"E:\ScnuProject\InsightRadar\backend\app"
print(os.path.basename(root_dir) + "/")
print_tree(root_dir)