一次运行这两个部分Python

Question

我有一些用于Raspberry Pi的Python，我测试按下按钮（第一个循环）并使用它来启动和停止计时器（第二个循环）。但是，如果我运行此程序，则只运行序列中的第一个循环。我怎么能这样做才能同时运行？代码：

编辑：对代码进行了更改以尝试适应线程。这会有用吗？

import os
os.chdir('/home/pi/Desktop/Python')

import lcd
lcd.lcd_init()

import time

import threading
from threading import Thread

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)

GPIO.setup(23,GPIO.IN, pull_up_down=GPIO.PUD_UP)

latest_state = None
status = False

seconds = 0
minutes = 0
hours = 0

def button():
    while True:
        if status == True:
            seconds +=1
        if seconds == 59:
            seconds = 0
            minutes = minutes + 1
        if minutes == 59:
            minutes = 0
            hours = hours + 1

        tup =  "  H:",hours," M:",minutes," S:",seconds

        display = ''.join(map(str, tup))

        lcd.lcd_string(display,2)

        time.sleep(0.99) 

Thread(target = button).start()

while True:
    inputValue = GPIO.input(23)
    if inputValue != latest_state:
        latest_state = inputValue
        if latest_state:
            print " "
        else:
            status = not status
            print status
            print " "