事件类型：

onblur
onchange
onclick
ondblclick
onerror
onfocus
onkeydown
onkeypress
onkeyup
onload
onmousedown
onmouseenter
onmouseleave
onmousemove
onmouseout
onmouseover
onmouseup
onresize
onscroll
onselect
onsubmit

//这些事最常用的事件（在页面上）

onblur ,onchange,onclick,ondblclick ,onfocus ,onkeydown ,onscroll ,onmouseout,onmouseover

javascript事件类型汇总