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  • 填充日期序列

    import pandas as pd
    from datetime import date,timedelta
    
    def add_month(d,md):
        yd= md//12
        m=d.month + md%12
        if m !=12:
            yd += m //12
            m = m%12
        return date(d.year+yd,m,d.day)
    books = pd.read_excel('D:/Temp/Books.xlsx',skiprows=3,usecols='C:F',index_col = None,dtype={'ID':str,'InStore':str,'Date':str})
    start = date(2018,1,1)
    for i in books.index:
        # books['ID'].at[i] = i+1
        books.at[i,'ID'] = i + 1
        # books['InStore'].at[i]='yes'if i % 2 == 0 else 'NO'
        books.at[i,'InStore'] = 'yes' if i % 2 == 0 else 'NO'
        # books['Date'].at[i]=start+timedelta(days=i)
        # books['Date'].at[i] = date(start.year+i,start.month,start.day)
        # books['Date'].at[i]= add_month(start,i)
        books.at[i,'Date'] = add_month(start, i)
    books.set_index('ID',inplace=True)
    books.to_excel('D:/Temp/Output4.xlsx')
    print('done!')
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  • 原文地址:https://www.cnblogs.com/inserence/p/10945273.html
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