我从Request.Files我的形象[0]。现在，我怎么上传此图片S3？我看到AWS .NET API在你把一个对象，它是一个字符串时指定ContentBody。我将如何得到我的文件的内容主体？

  var文件= Request.Files [0];
PutObjectRequest请求=新PutObjectRequest（）;
request.BucketName =mybucket
request.ContentType的contentType =;
request.Key =键;
request.InputStream = file.InputStream;
s3Client.PutObject（要求）;
 

I have my image from Request.Files[0]. Now, how do I upload this image to S3? I see that in the AWS .NET API you have to specify ContentBody when putting an object which is a string. How would I get the content body of my file?

var file = Request.Files[0];
PutObjectRequest request = new PutObjectRequest();
request.BucketName = "mybucket"
request.ContentType = contentType;
request.Key = key;
request.InputStream = file.InputStream;
s3Client.PutObject(request);