stirng value = ConfigurationManager.AppSettings["key"];
Properties.Settings访问
<sectionGroup name="TemperatureMonitor">
<section name="ArcingConfig" type="ArcingMonitor.Config.ArcingConfigSection,ArcingMonitor" />
</sectionGroup>
section定义节点和代码添加的节点没有关系
public class ArcingConfig : ConfigurationElement
{
[ConfigurationProperty("COM", IsRequired = true)]
public string COM
{
get { return base["COM"] as string; }
set { base["COM"]