我試圖在每次運(yùn)行以下命令時(shí)創(chuàng)建一個(gè)新文件。目前它會(huì)創(chuàng)建 1 個(gè)文件并覆蓋它。是否有一個(gè)方法可以使其不覆蓋并為每個(gè)循環(huán)創(chuàng)建一個(gè)新文件？import xml.etree.ElementTree as ETimport timeimport csvwith open('OrderCSV.csv', newline='') as csvfile:    reader = csv.DictReader(csvfile)    for row in reader:        orders_data = ET.Element('orders_data')        orders = ET.SubElement(orders_data, 'orders')        ##Order Details        order_reference = ET.SubElement(orders, 'order reference')        order_reference.set('',"12345")        order_date = ET.SubElement(order_reference, 'order_date')        order_priority  = ET.SubElement(order_reference, 'order_priority')        order_category = ET.SubElement(order_reference, 'order_category')        delivery_service = ET.SubElement(order_reference, 'delivery_service')        delivery_service.text = row['delivery_service']        timestr = time.strftime("%Y%m%d%H%M%S")        mydata = ET.tostring(orders_data)        myfile = open(timestr, "wb")        myfile.write(mydata)