C#Winform动态读取App.Config文件

App.Config文件如下：

<pre name="code" class="html">

<?xml version="1.0"?><configuration>  <configSections>  </configSections>  <appSettings>    <add key="Version" value="V1.0.001"/>  </appSettings><startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration><pre name="code" class="csharp">  

private void Init()        {            string node = "Version";            this.labVersion.Text = ConfigurationManager.AppSettings[node].ToString();        }