如何在python3中的csv文件中一次寫入列

Question

我正在從新聞網站抓取數據並保存到標題、新聞和 img 變量中，然后寫入 csv 文件但我在每個抓取行中都重復了列名，我只想打印時間列名然后保存我的抓取數據幫我這里是代碼

with open(r'C:\Users\Zain Noman\Desktop\DN-data.csv', 'a+', newline='') as file:
    writer = csv.writer(file, delimiter=',')
    writer.writerow(['title','news','img-url'])
    writer.writerows([mylist])
    file.close()

看到這個輸出圖片

Answer 1

我會這樣做

file = open('C:\Users\Zain Noman\Desktop\DN-data.csv', 'a+')
writer  = csv.writer(file) #csv wrapper
writer.writerow(['title','news','img-url']) #write the header once
writer.writerows(mylist) #write the the entire list assuming its a list of lists
file.close() #close the file connection

Answer 2

在 writerow 行使用此之前，我找到了答案及其簡單

with open('C:Desktop\DN-data.csv', 'a+', newline='') as file:
writer = csv.writer(file, delimiter=',')
if file.tell() == 0
  writer.writerow(['title','news','img-url'])
writer.writerows([mylist])
file.close()