同Windows Phone的独立存储类似，有细微差别
Windows Phone：
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
赋值时：settings["name"] = "root";
Windows 8:
ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
赋值时：localSettings.Values["name"] = "root";
一般在页面的LoadState事件中操作本地存储