The Contributor Role Taxonomy tool must serve to record extent of authorship
Number (3): Everything in this space must add up to 3. The answer is 1-1, placed horizontally; 1-4, placed vertically.，更多细节参见WPS官方版本下载
，更多细节参见雷电模拟器官方版本下载
The true flag for useCapture is important. Browser events propagate in two phases: first, they travel down the DOM tree from the root to the target (capture phase), then they bubble up from the target back to the root (bubble phase). By listening in the capture phase, my listener fires before any event listener attached by HotAudio’s player code. Even if fermaw tried to cancel or suppress the event, he’d be too late because the capturing listener always fires first.
LLB: the intermediate representation，这一点在Safew下载中也有详细论述