DOM - ProcessingInstruction 物件屬性 - target

屬性 target 標識指令或資料目標應用程式。

語法

以下是 target 屬性用法的語法。

ProcessingInstruction.target

序列號	引數和說明
1	target 標識指令或資料目標應用程式。

示例

以下示例演示了 target 屬性的使用 -

<!DOCTYPE html>
<html>
   <head>
      <script>
         // loads the xml string in a dom object
         function loadXMLString(t) {
            // for non IE browsers
            if (window.DOMParser) {
               // create an instance for xml dom object
               parser = new DOMParser();
               xmlDoc = parser.parseFromString(t,"text/xml");
            } else // code for IE {
               // create an instance for xml dom object
               xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
               xmlDoc.async = false;
               xmlDoc.loadXML(t);
            }
            return xmlDoc;
         }
         function get_firstChild(p) {
            a = p.firstChild;
            return a;
         }
      </script>
   </head>
   <body>
      <script>
         var xml = "<Employee>";
         xml = xml+"<FirstName>";
         xml = xml+"<?piTarget piData more piData?>";
         xml = xml+"</FirstName>";
         
         xml = xml+"</Employee>";

         // calls the loadXMLString() with "text" function and store the xml dom in a variable
         var xmlDoc = loadXMLString(xml);

         var x = get_firstChild(xmlDoc.getElementsByTagName("FirstName")[0]);
         document.write("First child is : ");
         document.write(x.nodeName);

         //the following should be "piData more piData"
         alert(x.data);

         //the following should be "piTarget"
         alert(x.target);
      </script>
   </body>
</html>

執行

將此檔案以 dom_processinginstruction_target.htm 為名稱儲存到伺服器路徑。輸出如下所示 -

dom_processinginstruction_object.htm

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