{
    "version": "2.0",
    "statement":
    [
     {
         "effect": "allow",
         "action": "cos:*",
         "resource": "qcs::cos:ap-shanghai:uid/1250000000:Bucket1-1250000000/dir1/*"
     },
     {
         "effect": "deny",
         "action": "cos:*",
         "resource": "qcs::cos:ap-shanghai:uid/1250000000:Bucket1-1250000000/dir1/Object1"
     }     
    ]
}