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if (!File.Exists(Constants.SYS_CONFIGURE_URL + @"\SaveAccount.xml"))
{
FileStream fs = File.Create(Constants.SYS_CONFIGURE_URL + @"\SaveAccount.xml");
fs.Close();
}
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string filename=Server.MapPath("/") + @"WebApplication1\web.config";
XmlDocument xmldoc= new XmlDocument();
xmldoc.Load(filename);
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XmlNodeList topM=xmldoc.DocumentElement.ChildNodes;
foreach(XmlElement element in topM)
{
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try
{
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DECLARE @x xml
SET @x = '<ROOT><a>111</a></ROOT>'
SELECT @x.query('/ROOT/a')
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