Edit in JSFiddle

 var input = document.querySelector("#input");
    var ul = document.querySelector("#ul");

    function getData(data) {
        console.log(data.s);
        ul.innerText = "";
        for (var i = 0; i < data.s.length; i++) {
            var li = document.createElement("li");
            li.innerText = data.s[i];
            ul.appendChild(li);
        }
    }

    input.oninput = function () {
        var value = input.value;
        if (value) {
            var script = document.createElement("script");
            //script.src = "https://suggestion.baidu.com/su?wd="+value+"&cb=getData";
            script.src = "https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=" + value + "&json=1&cb=getData";
            document.body.appendChild(script);
        }
    }

<div>
    <input type="text" id="input"/>
</div>

<ul id="ul">

</ul>

div{
  min-height:200px;
}