下载文件根据浏览器判断文件名，解决兼容性问题

兼容性解决

string FileDownloadName = string.Format("城市广告位详情{0}.xls", DateTime.Now.ToString("yyyyMMddHHmmss"));
string outputFileName = null;
//判断浏览器类型，火狐下文件名直接加双引号，IE Chrome下文件名用HttpUtility.UrlEncode或Server.UrlEncode进行编码
string browser = System.Web.HttpContext.Current.Request.Browser.Browser.ToUpper();
if (browser.Contains("MS") == true && browser.Contains("IE") == true)
{
outputFileName = HttpUtility.UrlEncode(FileDownloadName);
}
else if (browser.Contains("FIREFOX") == true)
{
outputFileName = """ + FileDownloadName + """;
}
else
{
outputFileName = HttpUtility.UrlEncode(FileDownloadName);
}

2.new Date().valueOf() 可获取毫秒值