Appsettings VS ApplicationSettings

1.ApplicationSettings是类型安全，通过VS可直接编辑，一般在properties.Settings.settings中，自动生成访问代码。

<setting name="Setting" serializeAs="String">
<value>This is the setting value</value>
</setting>

read:this.BackColor = Properties.Settings.Default.myColor;
set:
Properties.Settings.Default.myColor = Color.AliceBlue;
Properties.Settings.Default.Save();

2.Appsettings比较简单，没有类型安全。
<appSettings>
<add key="key1" value="value1"/>
<add key="key2" value="value2"/>
</appSettings>
Read：ConfigurationManager.AppSettings["key1"];
Set:conf.AppSettings.Settings[key1].Value = "value1";