var pxs = new Array();
pxs.push("22");
jQuery.each(pxs,function(){
str +=jQuery("#"+this).parent().attr("title")+" ";
});
var myMap =new Map();
myMap.put("key","value");
myMap.get(“key")
原文：http://www.cnblogs.com/lizuoqi/p/5626248.html