用C#读写XML实例?怎么写？

Question

c#XML

Answer 1

转化成公式?
加入dataset控件, 名字修改为dsXML
 string c1 = null;
            string c2 = null;
            dsXML.ReadXml(System.Windows.Forms.Application.StartupPath + @"\\test1.xml");
            c1 = dsXML.Tables["CondItem"].Rows[0]["vLeft"].ToString();
            c2 = dsXML.Tables["CondItem"].Rows[0]["vRight"].ToString();           

Answer 2

补充： str = c1+"=="+c2;
      MessageBox.Show(str);
　　　 str就是：hr_hi_edu.reducation =='04' 

Answer 3

包括写：string c1 = null;
            string c2 = null;
            string str;
            string s = "<?xml version=\"1.0\" encoding=\"gb2312\" ?>  <Condition>  <CondItem iItem=\"1\" vLeft=\"hr_hi_edu.reducation\" vMidOper=\"EQ\" vRight=\"'04'\" vBracketLeft=\"\" vBracketRight=\"\" vRelation=\"\"  />  </Condition>";            
            FileStream fs = new FileStream(System.Windows.Forms.Application.StartupPath + "\\test2.xml", FileMode.Create);
            StreamWriter sw = new StreamWriter(fs);          
            sw.Write(s);          
            sw.Flush();          
            sw.Close();
            fs.Close();
            dsXML.ReadXml(System.Windows.Forms.Application.StartupPath + @"\\test2.xml");
            c1 = dsXML.Tables["CondItem"].Rows[0]["vLeft"].ToString();
            c2 = dsXML.Tables["CondItem"].Rows[0]["vRight"].ToString();
            str = c1+"=="+c2;
            MessageBox.Show(str);