我们可以把IObserver附加到鼠标事件并对这些事件异步记录到一个集合当中。

One could attach an IObserver to mouse events and record them asynchronously into a collection.

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第4个问题：如何附加文件以进行文档记录？

Number 4: How can I attach files for documentation?

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第4个问题：如何附加文件以进行文档记录？

Number 4: How can I attach files for documentation?

youdao