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初级

统计各快递公司配送量与到达率

未完成
初级参考 完整示例代码供参考，建议自己理解后重新输入 
def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    shipments=pd.read_csv(StringIO(open_url("https://data.zuihe.com/dbd/ms-campustrade/state_02/shipments.csv").read()))
    by_carrier=shipments.groupby('carrier').agg(count=('shipment_id','count'),delivered=('status',lambda x:(x=='delivered').sum())).reset_index()
    by_carrier['delivery_rate']=(by_carrier['delivered']/by_carrier['count']*100).round(1)
    print("Shipment by carrier:")
    for _,r in by_carrier.sort_values('count',ascending=False).iterrows():
        print(f"  {r['carrier']}: count={r['count']} delivered={r['delivered']} rate={r['delivery_rate']}%")

示例

输入
solve()
期望输出
Shipment by carrier:
  韵达: count=6 delivered=1 rate=16.7%
  中通: count=3 delivered=2 rate=66.7%
  顺丰: count=3 delivered=3 rate=100.0%
  圆通: count=2 delivered=2 rate=100.0%
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