setInterval 是设定时间反复调用函数的方法;

setTimeOut 是个延时方法, 设定在多长时间后才开始执行一次;

 

setInterval定时刷新应用-如:

$(document).ready(function () {
setInterval(refreshMeetInfo, 5000);
});

function refreshMeetInfo() {
$.ajax({
type:'post',
url:'bookShop.do?parameter=refreshMeetInfo',
cache:false,
async:true,
success:function(booklist){
……
}

});
}

setTimeOut延时应用如:

$(document).ready(function () {
$("#date").text((new Date()).toString());
window.setTimeout(function () {
location.reload();
}, 1000);
});