ngKeydown/ngKeypress/ngKeyup

该指令在按键按下/按键按下/按键松开时执行指定表达式。

ngKeydown和ngKeypress略有不同，目前的测试是ngKeypress针对系统按键是无效的，而ngKeydown可以。

ngKeyup指令在按键松开的时候执行。

使用代码：

{
    {count}}  {
    {count}}  {
   {count}}

ngMousedown/ngMouseenter/ngMouseleave/ngMousemove/ngMouseover/ngMouseup

该指令在鼠标按下/鼠标进入/鼠标离开/鼠标移动/鼠标在上面/鼠标松开时执行指定表达式。

使用代码：

on mouse down{
    {count}}  when mouse enter{
    {count}}  when mouse leave{
    {count}}  when mouse move{
    {count}}  when mouse is over{
    {count}}  on mouse up{
   {count}}