/// <summary>
 /// 获取指定对象的实例属性或字段的值。
 /// </summary>
 /// <param name="target">要获取实例属性或字段值的对象。</param>
 /// <returns>指定对象的实例属性或字段的值。</returns>
 public TValue GetValue(TTarget target)
 {
     if (this.getDelegate == null)
     {
         throw CommonExceptions.BindTargetPropertyNoGet(this.name);
     }
     return(this.getDelegate(target));
 }