filename标识文件展示的名称。比如,使用该media_id发消息时,展示的文件名由该字段控制
POST https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=accesstoken001&type=file HTTP/1.1Content-Type: multipart/form-data; boundary=-------------------------acebdf13572468Content-Length: 220---------------------------acebdf13572468Content-Disposition: form-data; name="media";filename="wework.txt"; filelength=6Content-Type: application/octet-streammytext---------------------------acebdf13572468--