CircleCountDown 旋转的圆形倒计时 用法: 拖拽CircleView.h/m到项目中,然后 CircleView *view = [[CircleView alloc] initWithFrame:CGRectMake(100, 100, 60, 60)]; [self.view addSubview:view]; issue:如果你想进行一些必要的操作,或者改变,进入CircleView中进行更改吧-。-