.net之Ajax获取接口数据并实现循环播放

　

<script type="text/javascript">
        var xhr;
        ;
        var res;
        window.onload = function () {
            xhr = new XMLHttpRequest();//创建异步对象
            xhr.onreadystatechange = function() {
                ) {
                    ) {
                        res = xhr.responseText;//获得返回的json格式字符串
                    } else {
                        alert("xhr.status" + xhr.status);
                    }
                }
            };
            xhr.open("GET", "http://XXX", true);
            xhr.send(null);
        }
        function ChangeMsg() {
            var resjson = eval("(" + res + ")");//转换成json对象
            ].links;
            document.getElementById("divMsg").innerHTML = "全站喇叭：<a href='" + links[i].link + "'>" + links[i].text + "</a>";
            i++;
            if (i >= links.length) {
                i = ;
            }
        }
        setInterval();

    </script>