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Semalt: Yadda za a Kashe Abubuwan Shafin yanar gizo Yin amfani da Tsaro na Google Chrome

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Abun fuska mai rubutu shine rubutun da ke karanta shafuka da kuma cire bayanai mai amfani daga yanar gizo. Gyara allo shine mafita mafi kyau don samun ainihin bayanai daga shafuka da shafuka zuwa Microsoft Excel. Ƙarƙashin Ƙarƙashin Google Chrome yana da kayan aiki mai karfi wanda yake aiki a duka Windows da Mac OS.

Dalilin da yasa Google Chrome Extraper?

Ƙararraron Google Chrome ƙararrawa shine kayan aiki mai banƙyama wanda zai iya kyauta akan Yanar gizo ta Chrome. Wannan kayan kayan shafa an shigar a cikin bincike na Chrome azaman plugin. Wannan plugin zai bawa masu rubutun ra'ayin yanar gizo da masu kasuwa damar dawo da bayanai daga shafukan yanar gizon ta hanyar danna dama akan wani kashi - kolay domain. '' Scrape Similar '' ya kamata ya tashi a kan allo idan ka danna-dama wani kashi.

Gabatarwar zuwa XPaths

XPath ne harshen da ake amfani da shi don neman bayani mai mahimmanci a cikin tsarin XML. Fayil ɗin HTML shine misali mai kyau na tsarin XML. An yi amfani da XPath don amfani da nodes. A wannan mahallin, za a yi amfani da XPaths don ƙayyade rubutun da za'a samo a kan shafin yanar gizon. XPaths kuma zai taimaka wajen gane sunayen sunaye da lambobin waya na 'Yan majalisar dokokin kasar Sweden.

Amfani da magungunan Google Chrome don samun damar adreshin adireshin 349 'yan majalisar Sweden

Tare da Chrome na Scraper, cire bayanai daga shafin yanar gizon ba kawai mai sauƙi ba har ma da dama. Za ku ji dadin tsari da fasaha kanta.

Lissafin yanar gizon ya tattara dukkanin mambobi na Sweden da adiresoshin su. Don farawa, danna dannawa kan kowane MP kuma zaɓi "Sanya kwatanta. "Ya kamata ku lura da allon nuni a kan allonku.

Jagoran mataki a kan yadda za a duba shafin yanar gizo

Idan ka danna dama a kan MP daya sannan ka zaɓa "Duba batun," za a ƙirƙiri wani jerin haruffa a ƙarƙashin "" grid_6 alpha omega Jirgin binciken binciken ya jingina "aji. Matakai guda biyu za a yi amfani da su don magance wannan shafin yanar gizon. Mataki na farko zai ƙunshi zabar tags wanda ya ƙunshi bayanan MPs tare da XPath. Mataki na biyu zai ƙunshi ɗaukar takamaiman sassan bayanai kamar sunaye, sunayen, da lambar waya kuma tsara bayanai a ginshiƙai.

Mataki na 1

Tada zurfi a cikin tsarin HTML sannan ka riƙe abubuwa gaba ɗaya. Rubuta kalmomi don gano adadin lambobi daidai da abubuwa akan tsari. Nemo tag na karshe wanda ya ƙunshi bayanan da aka yi niyya. Gudun gwaji na XPath akan tsarin ta danna "Abba. "

Jerin da ya ƙunshi layuka 349 za a nuna a kan allonka. 349 wakiltar yawan adadin 'yan majalisa na kasar Sweden.

Mataki 2

Raba bayanan da aka gabatar a ginshikan. Bincika lambar HTML a kan shafin yanar gizon da kake amfani dasu. A wannan yanayin, ƙauyukan da za a cire su a wannan lokacin suna haskaka a cikin rawaya. Shigar da XPaths a cikin ginshikan filin halitta kuma danna "Scrape" don gudu plugin.

Idan kana da masaniya game da XPaths, fahimtar shirye-shirye ba zai zama aiki mai wahala gare ka ba. Matakan da aka nuna a sama suna jagorantar ku a kan yadda za a shafe shafin yanar gizo. Idan kuna aiki a kan tsaftace shafukan yanar gizo masu yawa, kuna buƙatar samun fasaha na shirin.

December 22, 2017