统计每日各餐次订餐量趋势

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    orders=pd.read_csv(StringIO(open_url(____).read()))
    active=orders[orders['____']=='____']
    daily=active.groupby(____).size().reset_index(____)
    print(____)
    for date in sorted(daily['____'].unique())[:____]:
        day_data=daily[daily['____']==date]
        parts='____'.join(f"____" for _,r in day_data.iterrows())
        print(____)