键盘监听================
$(document).keyup(function (event) {
if(event.keyCode==13){
$("p").css("background-color","deeppink")
}
});
鼠标监听==========================================
$(function(){
$("p").on("mousemove",show)
$("p").on("mouseout",die)
})
function show(){
$("p").css("color","red")
}
function die(){
$("p").css("color","black")
}