目录什么是WorkManagerWorkManager怎么使用多进程WorkManager总结什么是WorkManager WorkManager是Jetpack中的一个库，它扩展了JobScheduler的能力， 提供给应用在后台执行任务的能力。
I have several \'select\' elements on the page. When I choose some ofoptions, the ajax request is being sent to server and the element adjacent to this \'select\' must be updated with response value.
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