python抓取天气 -电脑资料

    程序很简单

    根据url找到网站截取相应的数据，

python抓取天气

#!/usr/bin/env pythonimport urllib2import reprovice=raw_input('input you provice')city=raw_input("input city:")url = "http://qq.ip138.com/weather/"+provice+"/"+city+".htm"#url = "http://qq.ip138.com/weather/anhui/HuoShan.htm"class Weather():        def __init__(self):                pass        def getHtml(self, url):                req = urllib2.Request(url)                res = urllib2.urlopen(req)                html = res.read()                res.close()                return html        def getWeather(self, html):                patterndate = re.compile(">(\d{4}-\d{1,2}-\d{1,2} .+)<")                date = patterndate.findall(html)                patternweather = re.compile("</p><p>    (.+)</td>")                weather = patternweather.findall(html)                patterntemperature = re.compile("<td>([-]?\d{1,2}.+)</td>")                temperature = patterntemperature.findall(html)                if len(date) == 0:                        print "Cannot get city's weather you input"                        return                for i in range(len(date)):                        print "%s" % date[i], "\t%s" % weather[i], "\t%s" % temperature[i]if __name__ == "__main__":        weather = Weather()        weather.getWeather(weather.getHtml(url))

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