如何实现图片的动态切换（间隔几秒就切换下一张）

（1）html代码

将这段js代码放在要显示图片的位置，例如：放在了td中：

<td>

var focus_width=200

var focus_height=300

var text_height=30

var swf_height = focus_height+text_height

var pics='<%=pics %>'

var links='<%=links %>'

var texts='<%=texts %>'

document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" width="'+ focus_width +'" height="'+ swf_height +'">');

document.write('<param name="allowScriptAccess" value="sameDomain"><param name="movie" value="playswf.swf"><param name=wmode value=transparent><param name="quality" value="high">');

document.write('<param name="menu" value="false"><param name=wmode value="opaque">');

document.write('<param name="FlashVars" value="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'">');

document.write('<embed src="playswf.swf" wmode="opaque" FlashVars="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'" menu="false" bgcolor="#DADADA" quality="high" width="'+ focus_width +'" height="'+ swf_height +'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer">');

document.write('</object>');

</script>

</td>

（2）在.cs中给全局变量 pics links texts 赋值，例如（供参考）：

protected string pics = string.Empty;

protected string links = string.Empty;

protected string texts = string.Empty;

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

//必须是jpg图片才能在flash里播放

string sql = "select top 5 pic,id,title from tb_photo where commend=1 and right(pic,3)='jpg' order by id desc";

DataTable dt = SqlHelper.ExecuteDataTable(CommandType.Text, sql);

for (int i = 0; i < dt.Rows.Count;i++ )

{

pics += "uploadfile/" +dt.Rows[i]["pic"].ToString() + "|";

links += "show.aspx?id=" + dt.Rows[i]["id"].ToString() + "|";

texts += dt.Rows[i]["title"].ToString() + "|";

}

dt.Dispose();

if (pics.Length > 0)//将最后的”|”去掉

{

pics = pics.Substring(0, pics.Length - 1);

links = links.Substring(0, links.Length - 1);

texts = texts.Substring(0, texts.Length - 1);

}

(3)这时浏览没有任何效果，缺少playswf.swf文件。拷贝playswf.swf文件到根目录（或其他位置，只要修改链接value="playswf.swf"），再浏览就可以了。没有该文件，就下载一个，大小10kb。

如何实现图片的动态切换（间隔几秒就切换下一张）

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