C# Winform如何修改xml内容

Question

xml内容如下:
:<?xml version="1.0" encoding="GBK" ?><SystemConfig Name="Config">       <Font>微软雅黑</Font>       <Color>400000</Color>       <Size>12</Size>       <A>字体效果</A></SystemConfig>例如我要修改Size的内容,怎样写.
读取xml,或者修改节点属性例如<SystemConfig Name="Config">方法已有.
对xml不熟识,求高手解答

Answer 1

修改public static void Update(string path, string node, string attribute, string value)
        {
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                XmlNode xn = doc.SelectSingleNode(node);
                XmlElement xe = (XmlElement)xn;
                if (attribute.Equals(""))
                {
                    xe.InnerText = value;
                }
                else
                {
                    xe.SetAttribute(attribute, value);
                }
                doc.Save(path);
            }
            catch { }
        }