如何在只允许安全组内实例互相访问的情况下授权安全组权限

<CreateSecurityGroupResponse>

    <RequestId>CEF72CEB-54B6-4AE8-B225-F876FF7BA984</RequestId>

    <SecurityGroupId>sg-F876FF7BA</SecurityGroupId>

</CreateSecurityGroupResponse>

{

    "RequestId":"CEF72CEB-54B6-4AE8-B225-F876FF7BA984",

    "SecurityGroupId":"sg-F876FF7BA"

}