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流数据订阅端的handler中怎么输出日志信息

我从DolphinDB database的流数据表订阅数据,请问在编写subscribeTable的handler(订阅函数)时,能不能print一些中间结果到屏幕上看看结果?


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可以使用writeLog函数输出日志信息。


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