在python中将标头写入csv文件

Writing header to a csv file in python

我有这个csv文件(file.csv):

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1,4.00,B
1,8.00,C
2,5.00,"B,C"
2,6.50,"C,D"
3,4.00,B
3,8.00,"B,D"

我想用python读取这个文件,然后在python中写一个头文件(id、cost、name)到这个csv文件。所以看起来像这样。

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ID,COST,NAME
1,4.00,B
1,8.00,C
2,5.00,"B,C"
2,6.50,"C,D"
3,4.00,B
3,8.00,"B,D"

我该怎么做?


这个怎么样?

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headers = ["ID","COST","NAME"]
rows = [(1, 4.00,"B"),
        (1, 8.00,"C")]
with open(name.csv','w') as f:
    f_csv = csv.writer(f)
    f_csv.writerow(headers)
    f_csv.writerows(rows)