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将计时器与timerup.invalidate(),set timercounting tofels 将计时器无效, to false,set count stopwatchlabel.text < /代码>零。
timerup.invalidate()
timercounting
count
Invalidate the timer with timerUp.invalidate(), set timerCounting to false, set count to zero, and set stopwatchLabel.text to zero.
timerUp.invalidate()
timerCounting
stopwatchLabel.text
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将计时器与
timerup.invalidate()
,settimercounting
tofels 将计时器无效, to false,setcount
stopwatchlabel.text < /代码>零。Invalidate the timer with
timerUp.invalidate()
, settimerCounting
to false, setcount
to zero, and setstopwatchLabel.text
to zero.