我是Swift3的新手，我正在尝试将函数转换为Swift3:-(void)drawRect:(CGRect)rect{if(self.editionMode==Zoom){for(Area*areainself.mArrayPaths){CGAffineTransformzoom=CGAffineTransformMakeScale(self.scale,self.scale);CGPathRefmovedPath=CGPathCreateCopyByTransformingPath([area.pathAreaCGPath],&zoom);area.pathAreaTransform