本文實(shí)例講述了python處理xml文件的方法。分享給大家供大家參考,具體如下:
前一段時(shí)間因?yàn)楣ぷ鞯男枰瑢W(xué)習(xí)了一點(diǎn)用Python處理xml文件的方法,現(xiàn)在貼出來(lái),供大家參考。
xml文件是按節(jié)點(diǎn)一層一層來(lái)疊加的,最頂層的是根節(jié)點(diǎn)。比如說(shuō):
<sys:String x:Key="STR_License_WithoutLicense">Sorry, you are not authorized.</sys:String>
其中sys:String為節(jié)點(diǎn)名字,x:Key的內(nèi)容為Attribute,xml節(jié)點(diǎn)值為sys:String的子節(jié)點(diǎn),它是文本節(jié)點(diǎn)類(lèi)型。<節(jié)點(diǎn)名稱(chēng) x:Key="Attribute">子節(jié)點(diǎn)。。。
RPD的xml格式:
<ResourceDictionary><sys:String x:Key="STR_Startup_LaunchRPD">Launching Polycom RealPresence Desktop</sys:String><sys:String x:Key="STR_Startup_CheckFolder">Checking folder</sys:String>
CMAD的xml格式:
<language-strings> <ABK_CALL comment="verb (command, button on screen to press to place a call);" controls="Button" products="HDX,VSX,CMAD,Venus Main"> <ARABIC notes="" last-change-date="" status="">打電話</ARABIC> <CHINESE_S notes="" last-change-date="" status="">呼叫</CHINESE_S>
該代碼的功能是:
從RPD的String中取出節(jié)點(diǎn)值,在CMAD的String中查找是否已經(jīng)存在,如果存在,則返回CMAD中對(duì)應(yīng)String的NodeName(節(jié)點(diǎn)名),并把兩個(gè)節(jié)點(diǎn)名一個(gè)做節(jié)點(diǎn)名,一個(gè)做節(jié)點(diǎn)值寫(xiě)到xml文件中;如果不存在,則把RPD中的該節(jié)點(diǎn)寫(xiě)到另外一個(gè)xml文件中。代碼如下:
import xml.dom.minidomfrom xml.dom.minidom import DocumentRPD_Str_path = "E:/PythonCode/StringResource.en-US.xaml"RPD_dom = xml.dom.minidom.parse(RPD_Str_path)CMAD_Str_path = "E:/PythonCode/M500_RPM13_0522.xml"CMAD_dom = xml.dom.minidom.parse(CMAD_Str_path)#得到根節(jié)點(diǎn)RPD_root = RPD_dom.documentElementCMAD_root = CMAD_dom.documentElementdef IsStr_already_Translated(RPD_Str): for firstLevel in CMAD_root.childNodes: for SecondLevel in firstLevel.childNodes: if SecondLevel.nodeType == SecondLevel.ELEMENT_NODE: if SecondLevel.nodeName == "ENGLISH_US": if RPD_Str == SecondLevel.childNodes[0].data.strip(): return firstLevel.nodeName else: continue else: continue else: continue else: continue else: return "Null"#用Document來(lái)寫(xiě)xml文件Mapping_doc = Document()Mapping_root = Mapping_doc.createElement("Common_String")Mapping_doc.appendChild(Mapping_root)Translation_doc = Document()Translation_root = Translation_doc.createElement("Need_Translation_String")Translation_doc.appendChild(Translation_root)for node in RPD_root.childNodes: if node.nodeType == node.ELEMENT_NODE:# print node.getAttribute("x:Key") +" + "+ node.childNodes[0].data CMAD_Key = IsStr_already_Translated(node.childNodes[0].data.strip()) if(CMAD_Key != "Null"): mKey = Mapping_doc.createElement(node.getAttribute("x:Key")) Mapping_root.appendChild(mKey) mValue = Mapping_doc.createTextNode(CMAD_Key) mKey.appendChild(mValue) elif(CMAD_Key == "Null"): Key = Translation_doc.createElement('sys:String') Translation_root.appendChild(Key) Key.setAttribute('x:Key', node.getAttribute("x:Key")) Value = Translation_doc.createTextNode(node.childNodes[0].nodeValue) Key.appendChild(Value) continueelse: path1 = "E:/PythonCode/ID_Mapping.xml" try: import codecs f1 = codecs.open(path1, "wb", "utf-8") f1.write(Mapping_doc.toprettyxml(indent=" ")) except: print('Write xml file failed.... file:{0}'.format(path1)) path2 = "E:/PythonCode/Need_Translate_String.xml" try: f2 = codecs.open(path2, "wb", "utf-8") f2.write(Translation_doc.toprettyxml(indent=" ")) except: print('Write xml file failed.... file:{0}'.format(path2))PS:這里再為大家提供幾款關(guān)于xml操作的在線工具供大家參考使用:
在線XML/JSON互相轉(zhuǎn)換工具:
http://tools.VeVB.COm/code/xmljson
在線格式化XML/在線壓縮XML:
http://tools.VeVB.COm/code/xmlformat
XML在線壓縮/格式化工具:
http://tools.VeVB.COm/code/xml_format_compress
XML代碼在線格式化美化工具:
http://tools.VeVB.COm/code/xmlcodeformat
更多關(guān)于Python相關(guān)內(nèi)容感興趣的讀者可查看本站專(zhuān)題:《Python操作xml數(shù)據(jù)技巧總結(jié)》、《Python數(shù)據(jù)結(jié)構(gòu)與算法教程》、《Python Socket編程技巧總結(jié)》、《Python函數(shù)使用技巧總結(jié)》、《Python字符串操作技巧匯總》、《Python入門(mén)與進(jìn)階經(jīng)典教程》及《Python文件與目錄操作技巧匯總》
希望本文所述對(duì)大家Python程序設(shè)計(jì)有所幫助。
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