代码：

<select><option value>请选择...</option></select><script>var $arr = [ {name:'lee',sex:'male'}, {name:'zhangsan',sex:'femal'}]var select = document.getElementsByTagName('select')[0]function render(arr){ var str = '' for(var i in arr){ var name = arr[i]['name'] var sex = arr[i]['sex'] str += "<option value='"+name+";"+sex+"'>"+name+"</option>" } select.innerHTML += str}select.onchange = render($arr)</script>效果：