/// <summary>
 /// 加入子级
 /// </summary>
 /// <param name="propertyConfig"></param>
 public void Add(EntityReleationConfig propertyConfig)
 {
     if (!Releations.Contains(propertyConfig))
     {
         propertyConfig.Parent = this;
         Releations.Add(propertyConfig);
     }
 }
 /// <summary>
 /// 加入子级
 /// </summary>
 /// <param name="propertyConfig"></param>
 public void Remove(EntityReleationConfig propertyConfig)
 {
     Releations.Remove(propertyConfig);
 }