Python 如何在while True循环内每x分钟写入csv文件

将上次更新的时间存储在变量中，如果已经过了五分钟，则更新它:

last_updated = datetime.now() - timedelta(minutes=6)

while True:
    if ((datetime.now() - last_updated).seconds / 60) >= 5:
        with open('enviroplus.csv', 'a', newline='') as csvfile:
            writer = csv.DictWriter(csvfile, delimiter=',', quotechar='|', 
quoting=csv.QUOTE_MINIMAL, fieldnames=['Date/Time','temperature','humidity','pressure','oxidising','reducing','nh3','lux','proximity','pm1','pm25',   'pm10'])                                                                                                                                                                            
            dt = datetime.now()
            if not file_exists:
                writer.writeheader()
                file_exists = True
            writer.writerow({'Date/Time': dt.strftime('%Y-%m-%d %H:%M:%S'), 
'temperature': ...})
        last_updated = dt
    get_temperature(args.factor)
    get_pressure()
    get_humidity()
    get_light()
    if not args.enviro:
        get_gas()
        get_particulates()
    if DEBUG:
        logging.info('Sensor data: {}'.format(collect_all_data()))

确保您也从datetime导入timedelta.请注意，last_updated最初设置为6分钟前，以确保文件在循环的第一次迭代时更新.