的值
rectangle被装箱-但是您将丢失被修改的装箱值。尝试这个：
Rectangle rectangle = new Rectangle();PropertyInfo propertyInfo = typeof(Rectangle).GetProperty("Height");object boxed = rectangle;propertyInfo.SetValue(boxed, 5, null);rectangle = (Rectangle) boxed;
的值
rectangle被装箱-但是您将丢失被修改的装箱值。尝试这个：
Rectangle rectangle = new Rectangle();PropertyInfo propertyInfo = typeof(Rectangle).GetProperty("Height");object boxed = rectangle;propertyInfo.SetValue(boxed, 5, null);rectangle = (Rectangle) boxed;名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
