流启动时的初始输入目录扫描将填充与输入模式匹配并等待由消息流处理的输入文件列表。
An initial scan of the input directory when the flow is started populates a list of input files that match the input pattern and are waiting to be processed by the message flow.
该文件中的代码负责在初次装载小部件时初始化小部件，并发布和处理事件，以便与其他小部件通信。
The code in this file is responsible for initializing the widget when it is first loaded, and for publishing and handling any events for communicating with other widgets.
但通常会将其作为一个问题看待，特别在使用可以从多个位置初始化的实时进程替换基于文件的批处理进程时更是如此。
But it is often identified as an issue, especially when file-based batch processes are being replaced with real-time processes that can be initiated from multiple places.
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