可用于站内搜索(动态与静态都可以用)

<iframe id="baiduframe" marginwidth="0" marginheight="0" scrolling="no"
  framespacing="0" vspace="0" hspace="0" frameborder="0" width="400" height="90"
  src="http://unstat.baidu.com/bdun.bsc?tn=czx1372_pg&cv=0&cid=1094653&csid=242&bgcr=ffffff&ftcr=000000&urlcr=0000ff&tbsz=335&sropls=2,99&insiteurl=www.baidu.com&kwgp=0">
</iframe>

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<iframe id="baiduframe" marginwidth="0" marginheight="0" scrolling="no"
  framespacing="0" vspace="0" hspace="0" frameborder="0" width="400" height="90"
  src="http://unstat.baidu.com/bdun.bsc?tn=czx1372_pg&cv=0&cid=1094653&csid=245&bgcr=ffffff&ftcr=000000&urlcr=0000ff&tbsz=335&sropls=1,2,3,99&insiteurl=www.exgzs.net&kwgp=0">
</iframe>

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<iframe id="baiduframe" marginwidth="0" marginheight="0" scrolling="no"
  framespacing="0" vspace="0" hspace="0" frameborder="0" width="200" height="30"
  src="http://unstat.baidu.com/bdun.bsc?tn=czx1372_pg&cv=0&cid=1094653&csid=102&bgcr=ffffff&ftcr=000000&urlcr=0000ff&tbsz=80">
</iframe>