_ticketView.layer.backgroundColor = kColorWhite.CGColor;
_ticketView.layer.cornerRadius = 8.0;
_backShadow.layer.shadowColor = [UIColor colorWithRed:46/255.0 green:106/255.0 blue:229/255.0 alpha:0.1].CGColor;
_backShadow.layer.shadowOffset = CGSizeMake(0,2);
_backShadow.layer.shadowOpacity = 1;
_backShadow.layer.shadowRadius = 8;
//两个半圆
UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(0, 0, kScreenWidth-40, 325)];
[pathappendPath:[UIBezierPath bezierPathWithArcCenter:CGPointMake(0, 110) radius:25 startAngle:M_PI_2 endAngle:M_PI*3.0/2.0 clockwise:NO]];
[pathappendPath:[UIBezierPath bezierPathWithArcCenter:CGPointMake(kScreenWidth-40, 110) radius:25 startAngle:M_PI*3.0/2.0 endAngle:M_PI_2 clockwise:NO]];
CAShapeLayer *shape = [CAShapeLayer layer];
// shape.backgroundColor = kColorClear.CGColor;
shape.path= path.CGPath;
_ticketView.layer.mask= shape;
UIBezierPath *leftPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(0, 110) radius:25 startAngle:M_PI_2 endAngle:M_PI*3.0/2.0 clockwise:NO];
UIBezierPath *rightPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(kScreenWidth-40, 110) radius:25 startAngle:M_PI*3.0/2.0 endAngle:M_PI_2 clockwise:NO];
UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, kScreenWidth-40, 325) byRoundingCorners:UIRectCornerAllCorners cornerRadii:CGSizeMake(8.0, 8.0)];
[shadowPathappendPath:leftPath];
[shadowPathappendPath:rightPath];
_backShadow.layer.shadowPath = shadowPath.CGPath;
