删除目录

POST /files/v2/<appid>/<bucket_name>/<dir_name>/  HTTP/1.1
Host: <Region>.file.myqcloud.com 
Content-Type: application/json
Authorization: <once_signature>

POST /files/v2/10055004/accesslog/testfolder/ HTTP/1.1
Host: sh.file.myqcloud.com
Authorization: JYv1bYoo9SdiJSBMxZYveGsB001hPTEwMDU1MDA0Jms9QUtJRHpuOHd3S3VYanhpeFFBa1JCQzJEUlhCdFBkN0NybEpRJmU9MCZ0PTE0NzI2MzkwNzEmcj03ODgwMTAxNTQmZj0vMTAwNTUwMDQvYWNjZXNzbG9nL3Rlc3Rmb2xkZXIvJmI9YWNjZXNzbG9n
Content-Type: application/json
Content-Length: 15

{
    "op": "delete"
}

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Content-Length: 30
Date: Wed Aug 31 18:24:31 2016
Server: tencent-cos

{
    "code": 0, 
    "message": "SUCCESS"
}