switch练习

switch练习

 

    <div>
        <label for="id">ID号</label>
        <input type="text" id="id" name="id">
        <button id="submit">查询</button>
    </div>
    <div id="reveal"></div>
    <script>
        var id=document.getElementById('id');
        var submit=document.getElementById('submit')
        submit.addEventListener('click',test);
        function test(ev){
            var s=(id.value)/1;
            var x;
            var re=document.getElementById('reveal');
            console.log(typeof(s));
            switch(s){
                case 1:re.innerHTML='这是第一个';
                break;
                case 2:re.innerHTML='这是第二个';
                break;
                default:
                re.innerHTML='8888888888';
            }
        }
    </script>