每x秒运行一次代码

感谢Lutz Horn在评论中提出的建议,我解决了这样的问题:

import schedule
import time
import serial

ser = serial.Serial()
ser.baudrate = 115200
ser.port = "/dev/ttyUSB0"
ser.timeout = 30

schedule.every(10).seconds.do(save_db)
try:
    try:
        while 1:
            schedule.run_pending()
            line = ser.readline().rstrip().decode('utf-8')
            # here every 10 seconds the function save_db will be called 
    except KeyboardInterrupt:
        ser.close()  # Close port
        pass
except serial.serialutil.SerialException as e:
    print(str(e))

我希望我对你的理解是正确的。使用 time.time() 设置计时器。

import time

def doEvery_X_Seconds():
        print("I do it every X seconds")
        time.sleep(1)

TIMER_LIMIT = 5
setTimer = time.time()

while(1):

        print("hello world")
        if(time.time() - setTimer >= TIMER_LIMIT):
                doEvery_X_Seconds()
                setTimer = time.time()

有 time.sleep(1) 只是为了证明它是有效的。