問題描述

完全新手，跪求各位大佬?。。?/p>

import csvwith open(’shiyan.csv’, ’rb’) as f: reader = csv.reader(f) your_list = list(reader) data = map(list,zip(*your_list)) for i,data in enumerate(data): row = data row = map(eval, row) listA=row result=[float( sum(listA[i:i+10])/10) for i,num in enumerate(listA) if i%10==0] print result

運(yùn)行結(jié)果如下，現(xiàn)在就是想把每次循環(huán)得到的result依次寫入一個(gè)新的csv文件中，但是最好按照一列一列的寫入，萬分感謝啊?。。。。。。?/p>

問題解答

建議你把數(shù)據(jù)放進(jìn)pandas的dataframe然后調(diào)用pandas.to_csv

我改了一下你的代碼，實(shí)測(cè)是可以從 a.csv復(fù)制到 b.csv中

import csvdef foo(): with open(’a.csv’, ’r’) as f:reader = csv.DictReader(f)rows = [row for row in reader]if not rows: return with open(’b.csv’, mode=’w’, newline=’’, errors=’ignore’) as f2: for index, row in enumerate(rows):if index == 0: f_csv = csv.DictWriter(f2, fieldnames=list(row.keys())) f_csv.writeheader()f_csv.writerow(row)if __name__ == ’__main__’: foo()

不懂可以再問