jQuery的on()监听方法使用

$("#demo-input").on('keyup',function(e){//绑定id="demo-input"的键盘UP的状态
  
  console.log(222);
  
})

以下是所有的事件名称：(自己百度每个的含义，不多做赘述)

  blur
focus
focusin
focusout
load
resize
scroll
unload
click
dblclick
mousedown
mouseup
mousemove
mouseover
mouseout
mouseenter
mouseleave
change
select
submit
keydown
keypress
keyup
error
contextmenu