ajax刷新输出实时数据

setInterval('shuaxin()',3000);
function shuaxin(){ 
$.ajax({//股票
url:"http://apimarkets.wallstreetcn.com/v1/price?callback=jQuery203008635729528032243_1472778999502&symbol=000001&timestamp=1472779568&price=&_=1472778999588", 
dataType : 'jsonp', 
success : function(response) {

$('.gupiao .zhishu').text(response.results[0].price);
$('.gupiao .rise-fall').text(response.results[0].change);
$('.gupiao .rise-fall-percent').text(response.results[0].changePercent);
$('.gupiao .highest').text(response.results[0].high);
$('.gupiao .lowest').text(response.results[0].low);
if(response.results[0].change<0){
$('.gupiao .cl-top').addClass('down').removeClass('up equal');
$('.gupiao .change-range').text("下跌幅度");
$('.gupiao .change-percent').text("下跌百分比");
}
else if(response.results[0].change==0){
$('.gupiao .cl-top').addClass('equal').removeClass('up down');
}
else{
$('.gupiao .cl-top').addClass('up').removeClass('down equal');
$('.gupiao .change-range').text("上涨幅度");
$('.gupiao .change-percent').text("上涨百分比");
} 
}
})

           }