搜索绑定回车键

        //点击搜索
        $("#btn-search").click(function(){
            searchHostCloudList();
        });
        //回车搜索
        document.onkeydown = function(e){ 
            var ev = document.all ? window.event : e;
            if(ev.keyCode==13) {
                document.getElementById('btn-search').click = searchHostCloudList();
            }
        };