ios通過URL地址，從網絡上獲取圖片

 -(UIImage *) getImageFromURL:(NSString *)fileURL {

NSLog(@"執行圖片下載函數");

UIImage * result;

NSData * data = [NSData dataWithContentsOfURL:[NSURL URLWithString:fileURL]];

result = [UIImage imageWithData:data];

return result;

}