逐步将流量从服务的一个版本迁移到另一个版本。</p><h2 id=cleanup>清除</h2><ol><li>删除应用程序的路由规则：</li></ol><div id=tabset-zhdocstaskstraffic-managementrequest-routing-4 role=tablist class=tabset><div class=tab-strip data-category-name=config-api><button aria-selected=true data-category-value=istio-classic aria-controls=tabset-zhdocstaskstraffic-managementrequest-routing-4-0-panel id=tabset-zhdocstaskstraffic-managementrequest-routing-4-0-tab role=tab><span>Istio cl