/**< 创建进度条视图*/
    YzCircleView  *circle = [YzCircleView prograssWithFrame:CGRectMake(100, 100, 200, 200) duration:5];
    /**< 添加到父视图*/
    [self.view addSubview:circle];
    
    /**< 设置可选属性*/
    circle.progressScale = 0.8;
    circle.startAngle = 0;
    circle.endAngle = 270;
    circle.trackLineWidth = 3;
    circle.progressLineWidth = 2;
    circle.trackColor = [UIColor grayColor];
    circle.progressColor = [UIColor orangeColor];