image存本地

1 //3.從上下文中取出繪製好的圖片2      UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();3      4      NSData *data = UIImagePNGRepresentation(newImage);5      6      NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"abc.png"];7      NSLog(@"%@", path);8      [data writeToFile:path atomically:YES];