如何在Zelle的图形窗口中打印时间(以秒为单位)？

Question

我想知道如何在图形窗口中打印时间(以秒为单位)。我正在尝试制作一个秒表，我的秒表png显示在一个窗口中，但是我如何在特定区域显示窗口中的时间?
另外，是否有一种方法可以像真正的秒表(hh:mm:ss)那样设置时间，在60秒后增加1分钟?

from graphics import *
import time
def main():
    win = GraphWin('Stopwatch', 600, 600)
    win.yUp()
    #Assigning images
    stopWatchImage = Image(Point (300, 300), "stopwatch.png")
    startImage = Image(Point (210, 170), "startbutton.png")
    stopImage = Image(Point (390, 170), "stopbutton.png")
    lapImage = Image(Point (300, 110), "lapbutton.png")
    #Drawing images
    stopWatchImage.draw(win)
    startImage.draw(win)
    stopImage.draw(win)
    lapImage.draw(win)
main()

Answer 1

如果可能的话，您可以尝试以下操作，但是在运行时您会注意到这个错误…

RuntimeError:主线程不在主循环中

(Zelle Graphics只是Tkinter的一个包装)

注释掉所有的图形内容，您将看到打印语句每秒都在增加。

from graphics import *
import datetime
from threading import Thread
import time
class StopWatch:
    def __init__(self):
        self.timestamp = datetime.time(hour = 0, minute = 0, second = 0)
    def __str__(self):
        return datetime.time.strftime(self.timestamp, '%H:%M:%S')
    def increment(self, hours=0, minutes=0, seconds=1):
        dummy_date = datetime.date(1, 1, 1)
        full_datetime = datetime.datetime.combine(dummy_date, self.timestamp)
        full_datetime += datetime.timedelta(seconds=seconds, hours=hours, minutes=minutes)
        self.timestamp = full_datetime.time()

def main():
    win = GraphWin('Stopwatch', 600, 600)
    watch = StopWatch()
    timer_text = Text(Point(200, 200), str(watch))
    timer_text.draw(win)
    def updateWatch():
        while True:
            time.sleep(1)
            watch.increment()
            print(str(watch))
            timer_text.setText(str(watch))
    t1 = Thread(target=updateWatch)
    t1.setDaemon(True)
    t1.start()
    t1.join()
    win.getMouse()

if __name__ == "__main__":
    main()