# 12.1.?概覽 你用 Google，對吧？它是一個很流行的搜索引擎。你是否希望能以程序化的方式訪問 Google 的搜索結果呢？現在你能做到了。下面是一個用 Python 搜索 Google 的程序。 ## 例?12.1.?`search.py` ``` from SOAPpy import WSDL # you'll need to configure these two values; # see http://www.google.com/apis/ WSDLFILE = '/path/to/copy/of/GoogleSearch.wsdl' APIKEY = 'YOUR_GOOGLE_API_KEY' _server = WSDL.Proxy(WSDLFILE) def search(q): """Search Google and return list of {title, link, description}""" results = _server.doGoogleSearch( APIKEY, q, 0, 10, False, "", False, "", "utf-8", "utf-8") return [{"title": r.title.encode("utf-8"), "link": r.URL.encode("utf-8"), "description": r.snippet.encode("utf-8")} for r in results.resultElements] if __name__ == '__main__': import sys for r in search(sys.argv[1])[:5]: print r['title'] print r['link'] print r['description'] print ``` 你可以在較大的程序中以模塊導入并使用它，也可以在命令行上運行這個腳本。在命令行上，需要把查詢字符串作為命令行參數使用，之后就會打印出最前面的五個 Google 查詢結果，包括：URL、標題和描述信息。 下面是以 “python” 作為命令行參數的查詢結果。 ## 例?12.2.?`search.py` 的使用樣例 ``` C:\diveintopython\common\py> python search.py "python" <b>Python</b> Programming Language http://www.python.org/ Home page for <b>Python</b>, an interpreted, interactive, object-oriented, extensible<br> programming language. <b>...</b> <b>Python</b> is OSI Certified Open Source: OSI Certified. <b>Python</b> Documentation Index http://www.python.org/doc/ <b>...</b> New-style classes (aka descrintro). Regular expressions. Database API. Email Us.<br> docs@<b>python</b>.org. (c) 2004\. <b>Python</b> Software Foundation. <b>Python</b> Documentation. <b>...</b> Download <b>Python</b> Software http://www.python.org/download/ Download Standard <b>Python</b> Software. <b>Python</b> 2.3.3 is the current production<br> version of <b>Python</b>. <b>...</b> <b>Python</b> is OSI Certified Open Source: Pythonline http://www.pythonline.com/ Dive Into <b>Python</b> http://diveintopython.org/ Dive Into <b>Python</b>. <b>Python</b> from novice to pro. Find: <b>...</b> It is also available in multiple<br> languages. Read Dive Into <b>Python</b>. This book is still being written. <b>...</b> ``` ## 進一步閱讀 * http://www.xmethods.net/ 是一個訪問 SOAP web 服務的公共知識庫。 * SOAP 規范相當可讀，如果你喜歡這類東西的話。