XmlDocument.LoadXml和Load的区别

LoadXml：从指定的字符串加载 XML 文档。

eg:doc.LoadXml("<root>aa</root>");

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
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.csharpcode .lnum { color: #606060; }

       public void LoadXmlTest() {
            // Create the XmlDocument.
            XmlDocument doc = new XmlDocument();
            doc.LoadXml("<item><name>wrench</name></item>");

            // Add a price element.
            XmlElement newElem = doc.CreateElement("price");
            newElem.InnerText = "10.95";
            doc.DocumentElement.AppendChild(newElem);

            XmlNode xmlNode = doc.SelectSingleNode("/item/name");
            Console.WriteLine(xmlNode.InnerText);
            xmlNode = doc.SelectSingleNode("/item/price");
            Console.WriteLine(xmlNode.InnerText);

            // Save the document to a file and auto-indent the output.
            XmlTextWriter writer = new XmlTextWriter("data.xml", null);
            writer.Formatting = Formatting.Indented;
            doc.Save(writer);
        }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

Load:加载指定的 XML 数据

XmlDocument.Load (Stream)从指定的流加载 XML 文档。
XmlDocument.Load (String) 从指定的 URL 加载 XML 文档。
XmlDocument.Load (TextReader) 从指定的 TextReader 加载 XML 文档。
XmlDocument.Load (XmlReader)从指定的 XmlReader 加载 XML 文档。

        public void getInfo(string fileName)
        {
            //创建XML的根节点
           // CreateXMLElement();
            string fileFullPath = Application.StartupPath + "\\" + fileName;
            Console.WriteLine(fileFullPath);
            XmlDocument doc = new XmlDocument();
            doc.Load(fileFullPath);

            XmlNodeList xmlNodeList = doc.SelectNodes("/root/business/item");
            foreach (XmlNode xmlNode in xmlNodeList)
            {
                Console.WriteLine(string.Format("{0}\t{1} \n{2}", xmlNode.Attributes["BusinessName"].Value, xmlNode.Attributes["DistinctionKey"].Value, xmlNode.Attributes["Url"].Value));
            }

            Console.ReadLine();
        }

http://msdn.microsoft.com/zh-cn/library/system.xml.xmldocument.loadxml(VS.80).aspx

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }