为 EC2-Classic 中的负载均衡器添加或删除可用区

aws elb enable-availability-zones-for-load-balancer --load-balancer-name my-loadbalancer --availability-zones us-west-2b

{ "AvailabilityZones": [ "us-west-2a", "us-west-2b" ] }

aws elb disable-availability-zones-for-load-balancer --load-balancer-name my-loadbalancer --availability-zones us-west-2a

{ "AvailabilityZones": [ "us-west-2b" ] }