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为什么RegisterMessageHandler对于特定的主题名称不起作用？
我不明白为什么以下引用的以下处理程序（processMessageAsync）没有为特定主题名称触发，而为其他主题名称成功触发： subscriptionClient.RegisterMessageHandler(processMessageAsync, msgOptions) 以下是我的订户类： open System open System.Linq open System.Threading open System.Text open System.Threading.Tasks open Microsoft.Azure.ServiceBus type Subscriber(connectionString:string, topic:string, subscription:string) = let mutable subscriptionClient : SubscriptionClient = null let exceptionReceivedHandler (args:ExceptionReceivedEventArgs) = printfn "Got an exception: %A" args.Exception Task.CompletedTask let processMessageAsync (message:Message) (_:CancellationToken) = try let _ = Encoding.UTF8.GetString(message.Body) subscriptionClient.CompleteAsync(message.SystemProperties.LockToken) …