a name="System.Keywords" content="CheckRegistered 方法" /><meta name="System.Keywords" content="BaseContainer%3CTBag%3E.CheckRegistered 方法" /><meta name="System.Keywords" content="BaseContainer(Of TBag).CheckRegistered 方法" /><meta name="Microsoft.Help.F1" content="Senparc.Weixin.Containers.BaseContainer`1.CheckRegistered" /><meta name="Microsoft.Help.Id" content="M:Senparc.Weixin.Containers.BaseContainer`1.CheckRegistered(System.String)" /><meta name="Description" content="检查Key是否已经注