backgroundworker信息详情
后台工作人员
footpaths background───人行道背景
checkmate background checks───核对背景调查
cultural backgrounds───文化背景（culturalbackground的复数）
background color───背景颜色
background───vt.作…的背景；adj.背景的；发布背景材料的；n.背景；隐蔽的位置
parchment background───羊皮纸背景
eery background───每个背景
acolyte background 5e───助手背景5e
background music───背景音乐；陪衬音乐
background image───背景影像；背景图像
You are now ready to add event handlers for the BackgroundWorker component's asynchronous events.───现在已准备好为BackgroundWorker组件的异步事件添加事件处理程序。
The BackgroundWorker class exposes the DoWork event, to which your worker thread is attached through a DoWork event handler.───BackgroundWorker类公开DoWork事件，您的辅助线程通过DoWork事件处理程序附加到该事件。
To implement the periodic animation feature, you will use BackgroundWorker objects from the System. ComponentModel namespace.───为实现周期动画特性，需要使用System.ComponentModel命名空间中的BackgroundWorker对象。
Use multiple BackgroundWorker objects for several simultaneous operations.───在同时进行的几项操作中使用多个BackgroundWorker对象。
Instead, a reference to the BackgroundWorker that raised this event is recovered from the sender parameter.───相反，引发此事件的BackgroundWorker引用将从sender参数恢复。
By using BackgroundWorker, the Dispatcher is being employed automatically to invoke cross-thread method calls.───通过使用BackgroundWorker，可自动应用Dispatcher来调用跨线程方法调用。