c#读取xml文件

xml文件如下：

<?xml version="1.0" encoding="iso-8859-1"?>

<!-- Edited with XML Spy v2007 (http://www.altova.com) -->

<CATALOG>

  -<PLANT>

    <COMMON>Bloodroot</COMMON>

    <BOTANICAL>Sanguinaria canadensis</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$2.44</PRICE>

    <AVAILABILITY>031599</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Columbine</COMMON>

    <BOTANICAL>Aquilegia canadensis</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$9.37</PRICE>

    <AVAILABILITY>030699</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Marsh Marigold</COMMON>

    <BOTANICAL>Caltha palustris</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Sunny</LIGHT>

    <PRICE>$6.81</PRICE>

    <AVAILABILITY>051799</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Cowslip</COMMON>

    <BOTANICAL>Caltha palustris</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$9.90</PRICE>

    <AVAILABILITY>030699</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Dutchman's-Breeches</COMMON>

    <BOTANICAL>Dicentra cucullaria</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$6.44</PRICE>

    <AVAILABILITY>012099</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Ginger, Wild</COMMON>

    <BOTANICAL>Asarum canadense</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$9.03</PRICE>

    <AVAILABILITY>041899</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Hepatica</COMMON>

    <BOTANICAL>Hepatica americana</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$4.45</PRICE>

    <AVAILABILITY>012699</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Liverleaf</COMMON>

    <BOTANICAL>Hepatica americana</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$3.99</PRICE>

    <AVAILABILITY>010299</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Jack-In-The-Pulpit</COMMON>

    <BOTANICAL>Arisaema triphyllum</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$3.23</PRICE>

    <AVAILABILITY>020199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Mayapple</COMMON>

    <BOTANICAL>Podophyllum peltatum</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$2.98</PRICE>

    <AVAILABILITY>060599</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Phlox, Woodland</COMMON>

    <BOTANICAL>Phlox divaricata</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$2.80</PRICE>

    <AVAILABILITY>012299</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Phlox, Blue</COMMON>

    <BOTANICAL>Phlox divaricata</BOTANICAL>

    <ZONE>3</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$5.59</PRICE>

    <AVAILABILITY>021699</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Spring-Beauty</COMMON>

    <BOTANICAL>Claytonia Virginica</BOTANICAL>

    <ZONE>7</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$6.59</PRICE>

    <AVAILABILITY>020199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Trillium</COMMON>

    <BOTANICAL>Trillium grandiflorum</BOTANICAL>

    <ZONE>5</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$3.90</PRICE>

    <AVAILABILITY>042999</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Wake Robin</COMMON>

    <BOTANICAL>Trillium grandiflorum</BOTANICAL>

    <ZONE>5</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$3.20</PRICE>

    <AVAILABILITY>022199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Violet, Dog-Tooth</COMMON>

    <BOTANICAL>Erythronium americanum</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$9.04</PRICE>

    <AVAILABILITY>020199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Trout Lily</COMMON>

    <BOTANICAL>Erythronium americanum</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$6.94</PRICE>

    <AVAILABILITY>032499</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Adder's-Tongue</COMMON>

    <BOTANICAL>Erythronium americanum</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$9.58</PRICE>

    <AVAILABILITY>041399</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Anemone</COMMON>

    <BOTANICAL>Anemone blanda</BOTANICAL>

    <ZONE>6</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$8.86</PRICE>

    <AVAILABILITY>122698</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Grecian Windflower</COMMON>

    <BOTANICAL>Anemone blanda</BOTANICAL>

    <ZONE>6</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$9.16</PRICE>

    <AVAILABILITY>071099</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Bee Balm</COMMON>

    <BOTANICAL>Monarda didyma</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$4.59</PRICE>

    <AVAILABILITY>050399</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Bergamot</COMMON>

    <BOTANICAL>Monarda didyma</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$7.16</PRICE>

    <AVAILABILITY>042799</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Black-Eyed Susan</COMMON>

    <BOTANICAL>Rudbeckia hirta</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Sunny</LIGHT>

    <PRICE>$9.80</PRICE>

    <AVAILABILITY>061899</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Buttercup</COMMON>

    <BOTANICAL>Ranunculus</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$2.57</PRICE>

    <AVAILABILITY>061099</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Crowfoot</COMMON>

    <BOTANICAL>Ranunculus</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$9.34</PRICE>

    <AVAILABILITY>040399</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Butterfly Weed</COMMON>

    <BOTANICAL>Asclepias tuberosa</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Sunny</LIGHT>

    <PRICE>$2.78</PRICE>

    <AVAILABILITY>063099</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Cinquefoil</COMMON>

    <BOTANICAL>Potentilla</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$7.06</PRICE>

    <AVAILABILITY>052599</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Primrose</COMMON>

    <BOTANICAL>Oenothera</BOTANICAL>

    <ZONE>3 - 5</ZONE>

    <LIGHT>Sunny</LIGHT>

    <PRICE>$6.56</PRICE>

    <AVAILABILITY>013099</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Gentian</COMMON>

    <BOTANICAL>Gentiana</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$7.81</PRICE>

    <AVAILABILITY>051899</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Blue Gentian</COMMON>

    <BOTANICAL>Gentiana</BOTANICAL>

    <ZONE>4</ZONE>

    <LIGHT>Sun or Shade</LIGHT>

    <PRICE>$8.56</PRICE>

    <AVAILABILITY>050299</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Jacob's Ladder</COMMON>

    <BOTANICAL>Polemonium caeruleum</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$9.26</PRICE>

    <AVAILABILITY>022199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Greek Valerian</COMMON>

    <BOTANICAL>Polemonium caeruleum</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$4.36</PRICE>

    <AVAILABILITY>071499</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>California Poppy</COMMON>

    <BOTANICAL>Eschscholzia californica</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Sun</LIGHT>

    <PRICE>$7.89</PRICE>

    <AVAILABILITY>032799</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Shooting Star</COMMON>

    <BOTANICAL>Dodecatheon</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Mostly Shady</LIGHT>

    <PRICE>$8.60</PRICE>

    <AVAILABILITY>051399</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Snakeroot</COMMON>

    <BOTANICAL>Cimicifuga</BOTANICAL>

    <ZONE>Annual</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$5.63</PRICE>

    <AVAILABILITY>071199</AVAILABILITY>

  </PLANT>

  -<PLANT>

    <COMMON>Cardinal Flower</COMMON>

    <BOTANICAL>Lobelia cardinalis</BOTANICAL>

    <ZONE>2</ZONE>

    <LIGHT>Shade</LIGHT>

    <PRICE>$3.02</PRICE>

    <AVAILABILITY>022299</AVAILABILITY>

  </PLANT>

</CATALOG>

定义一个类读取xml

 public void readXml(string filename)
        {
            XmlDocument xmlDoc = new XmlDocument();
            try
            {
                xmlDoc.Load(filename);

                XmlNodeList xnlist = xmlDoc.SelectNodes("//PLANT");
                Console.WriteLine("共有{0}个节点", xnlist.Count);
                foreach (XmlNode xn in xnlist)
                {
                    string plantComman = xn.SelectSingleNode("COMMON").InnerText;
                    string plantPrice = xn.SelectSingleNode("PRICE").InnerText;
                    string plantZone = xn.SelectSingleNode("ZONE").InnerText;
                    Console.WriteLine("plantComman :{0}/plantPrice:{1}/plantZone:{2}", plantComman, plantPrice, plantZone);
                }

            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message) ;
            }
        }

调用：

   Class1 cl = new Class1();
            string filename = @"F:xml.xml";
            cl.readXml(filename);
            Console.Read();