XML介绍系列篇四
---（文/Batman）
系列之十：使用IE5浏览XML文使用IE5浏览XML件
你可以使用IE5象浏览其他HTML文件一样浏览XML的文件
这有几种打开一个XML文档的方法
你可以单击一个超联结，在地址栏里面直接输入URL
在目录里面双击一个XML文档等等
如果你使用IE5打开一个XML文档, IE5将显示这个
文档的使用展开方式显示根元素和子元素
一个加号(+)或减号(-)显示在一个XML元素的左边，
并且点击它们就可以展开或收拢整个树状结构
如果你仅仅是想查看XML源程序的话，你可以选择"View Source"
当你打开一个无效的XML文件时，一个表示出错的XML文件将被
IE5打开，并且IE5在里面抱错
为了让大家更加熟悉什么是XML的文件，下面将给出一些例子，大家自己去享受把。
大家也可以从下面的例子中体会到XML是如何来描述数据的。
例子文件plant_catalog.xml(这是一个用来描述种植目录的XML数据文件)
<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>Diecentra 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>Bergamont</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>
例子文件2shakespeare_original.xml(一个用来描述莎士比亚剧本的XML文件)
（例子太长，见下一篇介绍）