UIBezierPath *bezierPath = [UIBezierPath bezierPathWithRoundedRect:self.backVOne.bounds byRoundingCorners:UIRectCornerTopLeft | UIRectCornerTopRight cornerRadii:(CGSize){10.0}];
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
// 设置绘制路径
shapeLayer.path = bezierPath.CGPath;
// 将shapeLayer设置为cornerView的layer的mask
self.backVOne.layer.mask = shapeLayer;
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