public FilePathResult DownLoadFileFromPath(string DateNmae)
        {
            string name = DateNmae;
            string virtualPath = "~/Temp/" + name;
            string physicsPath = Server.MapPath(virtualPath);
            return File(physicsPath, "application/octet-stream", name);
        }

///文件下载
function GetFileData(obj) {
    var DataNameStr = $(obj).attr("name");
    var DataName = new Array(); //定义一数组
    DataName = DataNameStr.split(","); //字符分割
    for (var i = 0; i < DataName.length; i++) {
        alert(DataName[i]);
        GetFileDataFun(DataName[i]);
    }
}
///文件下载
function GetFileDataFun(data) {
    $.ajax({
        type: "post",
        url: "/ConferenceDataManagement/DownLoadFileFromPath",
        data: { "DateNmae": data },
        success: function (result) {
            window.location = "/ConferenceDataManagement/DownLoadFileFromPath?DateNmae=" + data;
        }
    });
}