function formatDate(dt) {

    var year = dt.getFullYear();

    var month = dt.getMonth() + 1;

    var date = dt.getDate();

    var hour = dt.getHours();

    var minute = dt.getMinutes();

    var second = dt.getSeconds();

    return year + "-" + month + "-" + date + " " + hour + ":" + minute + ":" + second;

}

function TestIt(time) {

    //var Dtime = "\/Date(1408943415760+0800)\/";

    var t = time.slice(6, 19)

    //var d = eval('new ' + str.substr(1, str.length - 2));// 这样也可以转换成Date

    var NewDtime = new Date(parseInt(t));

    return formatDate(NewDtime);

}

console.log(TestIt("/Date(1518943415760+0800)/"));

//"2018-2-18 16:43:35"