1.webconfig配置在不同文件夹下引用
<appSettings configSource="office\\test.config"/>
2.webconfig中session配置
<sessionState mode="StateServer" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes" cookieless="false" timeout="120"/>