小编new*_*bie的帖子

我有2个csv文件:

• output.csv
• output1.csv

output.csv有5列标题.
output1.csv有大约40列不同类型的数据.

我需要将output1.csv的所有内容追加到output.csv.我怎样才能做到这一点？
有人可以给我一个关于如何去做的提示吗？
我有以下代码:

reader=csv.DictReader(open("test.csv","r"))
allrows = list(reader)

keepcols = [c for c in allrows[0] if all(r[c] != '0' for r in allrows)]

print keepcols
writer=csv.DictWriter(open("output.csv","w"),fieldnames='keepcols',extrasaction='ignore')
writer.writerows(allrows)

    with open("test1.csv","r") as f:
        fields=next(f).split()
        # print(fields)
        allrows=[]
        for line in f:
            line=line.split()
            row=dict(zip(fields,line))
            allrows.append(row)
            # print(row)
        keepcols = [c for c in fields if any(row[c] != '0' for row in allrows)]
        print keepcols
        writer=csv.DictWriter(open("output1.csv","w"),fieldnames=keepcols,extrasaction='ignore')
        writer.writerows(allrows)

test.csv生成output.csv
test1.csv生成output1.csv

即时通讯试图看看我是否可以让两个文件在同一个文件中生成我的输出..