需求：

只对oss目录有上传权限，不能预览，下载，删除

效果：

无法预览：

无法下载：

无法删除：

可以在指定目录上传：

策略：

{
    "Version": "1",
    "Statement": [
        {
            "Effect": "Allow",                                #allow代表允许
            "Action": [
                "oss:ListBuckets",
                "oss:GetBucketStat",
                "oss:GetBucketInfo",
                "oss:GetBucketTagging",
                "oss:GetBucketLifecycle",
                "oss:GetBucketWorm",
                "oss:GetBucketVersioning",
                "oss:GetBucketAcl"
            ],
            "Resource": "acs:oss:*:*:*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "oss:ListObjects",
                "oss:GetBucketAcl"
            ],
            "Resource": "acs:oss:*:*:bucket-name"                #bucket-name是你的bucket的名字
        },
        {
            "Effect": "Allow",
            "Action": [
                "oss:ListBuckets",
                "oss:GetBucketStat",
                "oss:GetBucketInfo",
                "oss:GetBucketTagging",
                "oss:GetBucketLifecycle",
                "oss:GetBucketWorm",
                "oss:GetBucketVersioning",
                "oss:GetBucketAcl",
                "oss:PutObject"
            ],
            "Resource": "acs:oss:*:*:bucket-name/oss/*"        #允许查看的目录
        }
    ]
}