示例一：使用source参数提供查询的数据源。
$(".typeahead").typeahead({
source: [
{id: "id1", name: "jQuery"},
{id: "id2", name: "Script"},
{id: "id3", name: "Net"},
{id: "id4", name: "javascript"},
{id: "id5", name: "java"},
{id: "id6", name: "Php"},
{id: "id7", name: ".Net"},
]
});
示例二：通过json提供查询的数据源。
$.get("data.json", function(data){
$(".typeahead").typeahead({
source:data
});
},'json');
//data.json的格式如下：
["jQuery","Script",".Net","Python","java","javascript","C++","CSS","HTML5"]