{
    "version": "2.0",
    "statement":[
     {
         "effect": "allow",
         "action":  [
                    "cos:List*",
                    "cos:Get*",
                    "cos:Head*",
                    "cos:OptionsObject"
                ],
         "resource": "qcs::cos:ap-shanghai:uid/1250000000:Bucket1-1250000000/dir1/*"
     }
   ]
}