计时器用法
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先修科目
介绍
在侦测类别中,有一个报表积木“计时器”,以及3个操作计时器的堆栈积木:“计时器归零”、“暂停计时器”、“恢复计时器”。

积木:“计时器”
积木“计时器”显示的是从归零开始用了多长时间,以“秒”为单位。注意:当你点击绿旗按钮时,计时器也随之归零。
如果你勾选计时器左边的确认框,该积木就会在舞台上显示时间。

注意:时间以秒为单位(不是分钟),就算超过60秒也是按秒算。
例如
表示92秒657毫秒。
积木:“计时器归零”
这个积木使计时器的数值重置为0。也就是说,每当你点击积木“计时器归零”,计时器就会从0开始重新计时。

“暂停计时器”和“恢复计时器”
积木“暂停计时器”会把计时器冻结为当前数值,那么,计时器的数值不再增加。
积木“恢复计时器”使计时器恢复计时,那么它就会从当前数值继续计时。

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