ajax

$.post("head.php","chatid:"+chatid+"&chatlast:"+chatlast,function(data){});
$.post("head.php",{"chatid":chatid,"chatlast":chatlast},function(data){});

 


$("a").on("click",function(){
　　var href=$(this).attr("href");
　　$(this).attr("href",href + "?" + "chatid=" + 1 + "&chatlast=" + 2);
})

 

 $("a").on("click",function() {       
        $.post(url, function (data) {
           $(this).attr("href", url + "?" + "chatid=" + chatid + "&chatlast=" + chatlast);
        })
    }
//ajax向后台传递数组（转）
$.ajax({
    traditional: true//这个设置为true，data:{"steps":["qwe","asd","zxc"]}会转换成steps=qwe&steps=asd&...
});