根据IP自动获取所在地天气预报

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QQ天气预报代码（二）
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新浪天气预报代码:：
<IFRAME ID='ifm2' WIDTH='260' HEIGHT='70' ALIGN='CENTER' MARGINWIDTH='0' MARGINHEIGHT='0' HSPACE='0' VSPACE='0' FRAMEBORDER='0' SCROLLING='NO' src="http://news.sina.com.cn/iframe/weather/130101.html"></iframe><iframe src="http://homepage.yesky.com/" width="100%" height="100%" frameborder="no" border="0" marginwidth="0" marginheight="0" scrolling="no"></iframe><script language="Javascript"> var now = new Date(); document.write("<img src='http://counter.yesky.com/counter.shtml?CID=54197&AID=-1&refer="+escape(document.referrer)+"&rand="+ now.getTime() + "&cur="+escape(document.URL)+"' border='0' alt='' width='0' height='0'>"); </script> <noscript> <img src="http://counter.yesky.com/counter.shtml?CID=54197&AID=-1&refer=noscriptcounter&cur=noscriptcounter" border='0' width='0' height='0'/> </noscript>