工作swift2.2波纹管block。AvtarImgview.setImageWith(URL(string:https://....),completed:{(image:UIImage!,error:NSError!,cacheType:SDImageCacheType,imageURL:URL!)->Voidinifimage!=NSNotFound&&image!=nil{letcgref:CGImageRef?=image.cgImageletcim:CIImage?=image.ciImageifcgref==nil&&cim==nil{self.AvtarImgview

当我声明SDWebImageCompletionBlock时，它会在编译“使用未声明的类型类型‘SDWebImageCompletionBlock’之前抛出此错误:letblock:SDWebImageCompletionBlock!={(image:UIImage!,error:NSError!,cacheType:SDImageCacheType!,imageURL:NSURL!)->Voidin}当我设置没有完成block的imageView时，这是有效的:self.imgView!.sd_setImageWithURL(url,placeholderImage:UIImage(