查询VIP用户及注册天数

def solve():
    from pyodide.http import open_url
    users_csv = open_url("https://data.zuihe.com/dbd/ecommerce/state_A00/users.csv").read()
    categories_csv = open_url("https://data.zuihe.com/dbd/ecommerce/state_A00/categories.csv").read()
    products_csv = open_url("https://data.zuihe.com/dbd/ecommerce/state_A00/products.csv").read()
    import sqlite3
    import pandas as pd
    from io import StringIO

    conn = sqlite3.connect(':memory:')
    pd.read_csv(StringIO(users_csv)).to_sql('users', conn, index=False, if_exists='replace')

    result = pd.read_sql_query("""
        SELECT
            username,
            level,
            CAST(julianday('2025-05-01') - julianday(created_at) AS INTEGER) AS days_since_join
        FROM users
        WHERE level IN ('vip', 'gold')
        ORDER BY days_since_join DESC
    """, conn)
    print(result.to_string(index=False))
    conn.close()