相同输入不同的返回结果，世界是个草台班子 aliyun cms describe-metric-last --namespace acs_slb_dashboard --metric-name InstanceTrafficTX --period 900 --start-time '2026-08-21 19:00:00' --end-time '2026-08-21 20:12:00' --dimensions '{"InstanceId": "lb-bp1vi3jrfz2572ex71b1c"}' --api-version 2019-01-01 --region cn-hangzhou { "Code": "200", "Datapoints": "[]", "Period": "900", "RequestId": "01A02683-1D74-5B2E-829C-3C656423E78F", "Success": true } ➜ ~ aliyun cms describe-metric-last --namespace acs_slb_dashboard...