button catch的意思|示意

Events bubble up so you'll be able to catch the event and figure out which button it originated from.

事件冒泡了等，这样您就能够捕获事件，并找出它来自哪个按钮。

If you say "you know" too much, wear a golf counter on your wrist, and press the button whenever you catch yourself saying "you know".

如果你总是把“you know”挂在嘴边，就在手腕上戴个高尔夫计数器，每当意识到自己说一次“youknow”时就按一下计数键。

So the UI test automation will not catch the logic error if the application has the wrong method wired to a button click event (although every test would fail and you'd find the problem quickly).

所以如果应用程序为按钮单击事件关联了错误的方法，UI测试自动化不会捕捉到逻辑错误(虽然每次测试都会失败，而且您会很快发现问题)。

An alternative is to use onmouseup to catch any mouse release and check for the right button.

作为代替可以使用onmouseup事件来检测和处理松开鼠标右键的事件。