从AWSS3下载一个700KB的图像文件大约需要7.5秒。我写了这个方法来从AWSS3下载图像:+(UIImage*)downloadImageFromPath:(NSString*)path{NSDate*methodStart=[NSDatedate];S3GetObjectRequest*getObjectRequest=[[S3GetObjectRequestalloc]initWithKey:pathwithBucket:AWS_BUCKET];AmazonS3Client*s3=[[AmazonS3Clientalloc]initWithAccessKey:ACCESS_K