var ajaxGet = $.get(“comet_server.php”,{id:1},function(data){
….//一些操作
});
ajaxGet.abort();

var ajaxGet = $.get(“comet_server.php”,{id:1},function(data){
if(data.length == 0) return true;
….//一些操作
});
ajaxGet.abort();

var request = $.get(“ajax.aspx”,{id:1},function(data){
  //do something
});
//终止请求动作.
request.abort();

var request;
if(request != null)
  request.abort();
request = $.get(“ajax.aspx”,{id:1},function(){
  //do something
});
ajax & setTimeout实现 secondTry 在等待一秒之后将firstTry的ajax终止：
var firstTry = $.ajax(
 //do something
 );
var secondTry = setTimeout(function(){alert(‘ok');firstTry.abort()},1000);