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在我的测验应用程序中,我想为整个测验包含一个倒数计时器。任何人都可以给我链接或任何关于倒数计时器实施的想法吗?
int seconds = time % 60; int minutes = (time - seconds) / 60; theTimer.text = [NSString stringWithFormat:@"%d:%.2d", minutes, seconds];