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初级

加载复习调度数据并统计

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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
    schedules=pd.read_csv(StringIO(open_url("https://data.zuihe.com/dbd/ms-memcard/state_02/card_schedules.csv").read()))
    print(f"Total schedules: {len(schedules)}")
    print(f"By status: {dict(schedules.groupby('status').size())}")
    print(f"Avg EF: {round(schedules['ease_factor'].mean(),3)}")
    print(f"Avg interval: {round(schedules['interval_days'].mean(),1)} days")
    review_ready=schedules[schedules['status']=='review']
    print(f"In review state: {len(review_ready)}")
    suspended=schedules[schedules['status']=='suspended']
    print(f"Suspended: {len(suspended)}")

示例

输入
solve()
期望输出
Total schedules: 994
By status: {'learning': np.int64(206), 'new': np.int64(110), 'review': np.int64(653), 'suspended': np.int64(25)}
Avg EF: 2.475
Avg interval: 212.0 days
In review state: 653
Suspended: 25
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