上傳/下載檔案
===

## Ref.
[Android HttpURLConnection 上傳檔案 (multipart/form-data)](http://blog.kenyang.net/2011/12/27/android-httpurlconnection-multipartform)

[simple HttpURLConnection POST file multipart/form-data from android to google blobstore](https://stackoverflow.com/a/34409142)

[URLConnection to upload and download files](https://programming.vip/docs/urlconnection-to-upload-and-download-files.html)

###### tags: `實作相關`