jquery常用实例

$("#returnTop").click(function ()

{ var speed=200;//滑动的速度 $(\'body,html\').animate({ scrollTop: 0 }, speed); return false;

});

js判断手机还是电脑访问

$.ajax跨域请求数据

服务器端

namespace Home\Controller;
    use Think\Controller\RestController;
    Class InfoController extends RestController {
       public function rest() {
            $trade = M("Trade");
           $data = $trade->order(\'id desc\')->limit(4)->select();
           foreach($data as $k=>$v){
               $data[$k][\'time\']=date(\'Y-m-d h:i\',$v[\'create_time\']);
           }
           echo $_GET[\'jsoncallback\'] . "(".json_encode($data).")";
           exit;
       }
        public function detail() {
           $id=$_GET[\'id\'];

            $trade = M("Trade");
             $data = $trade->where(array(\'id\'=>$id))->find();
           $data[\'time\']=date(\'Y-m-d h:i\',$data[\'create_time\']);
           echo $_GET[\'jsoncallback\'] . "(".json_encode($data).")";
           exit;
       }

     }

html页面端

$.ajax(
    {
        type:\'get\',
        url : url,
        dataType : \'jsonp\',
        jsonp:"jsoncallback",
        success : function(data) {
       var html=\'\';
           $.each(\'data\',function(i,k){
          html+=\'<div class="list clearfix fl"><a href="./detail.html?id=\'+data[i].id+\'"><samp></samp><span class="opa8"></span><p class="tit">\'+data[i].title+\'</p></a></div>\';
           })
           $(".case-list").append(html);
        },


    }
);