ConfigurationManager.AppSettings物业 返回包含当前应用程序的默认配置的AppSettingsSection对象的内容的的NameValueCollection对象

但我需要AppSettingsSection对象，因为我需要去改变它configSource属性在运行时

 无功配置= WebConfigurationManager.OpenWebConfiguration（〜）;
变种appSettingsSection =（AppSettingsSection）configuration.GetSection（的appSettings）;
 

ConfigurationManager.AppSettings Property Returns a NameValueCollection object that contains the contents of the AppSettingsSection object for the current application's default configuration.

but I need AppSettingsSection object because I need to change it configSource property in runtime

var configuration = WebConfigurationManager.OpenWebConfiguration("~");
var appSettingsSection = (AppSettingsSection)configuration.GetSection("appSettings");