umbracoInternalRedirectId  填写content nodeid，会重定向到此内容，网址不会变

umbracoRedirect 填写content nodeid，会重定向到此内容，网址会改变成填写的Node的网址

UmbracoUrlName 默认会把Content的Name当作Url，如果此字段填写了值，则将此替换成Name当作Url

umbracoUrlAlias URL别名，比如当前Url是 /aboutus，如果别名填写了about，则访问 /about跟访问/aboutus是一样的

public static class Content
{
 /// <summary>
 /// Property alias for the Content's Url (internal) redirect.
 /// </summary>
 public const string InternalRedirectId = "umbracoInternalRedirectId";
/// <summary>
 /// Property alias for the Content's navigational hide, (not actually used in core code).
 /// </summary>
 public const string NaviHide = "umbracoNaviHide";
/// <summary>
 /// Property alias for the Content's Url redirect.
 /// </summary>
 public const string Redirect = "umbracoRedirect";
/// <summary>
 /// Property alias for the Content's Url alias.
 /// </summary>
 public const string UrlAlias = "umbracoUrlAlias";
/// <summary>
 /// Property alias for the Content's Url name.
 /// </summary>
 public const string UrlName = "umbracoUrlName";
}