Jquery 函数for：
var _list = catsData[key]['lower'];
for(var i in _list){
_html += '<option value="'+_list[i]['path']+'">'+_list[i]['cnName']+'</option>';
}
$('#J_subCats').html(_html);
}Jquery 函数each：
$.each(data, function(i,n){
var html='<li>
<div class="pic" >
<a class="yershop_img" href="'+n.url+'" target="_blank" title="'+n.title+'">
<img src="'+n.pic+'" ></a>
</div>
<div class="name">
<a href="'+n.url+'" target="_blank" title="'+n.title+'">'+n.title+'</a>
</div>
<div class="price"><font>￥</font><span>'+n.price+'</span></div></li> ';
$("ul#list_"+pid).append(html);
});
