EventTarget

  • 是一个接口
  • an Eventtarget object represents a target to which an event can be dispatched when something has occurred
  • each EventTarget object has an associated(相关的） event listener list(a list of zero or more event listeners).it is initially the empty list.
posted @ 2020-12-22 13:41  李逍遥701  阅读(105)  评论(0)    收藏  举报