Sorting 如何对红色列表进行反向排序？

我一直在玩，我想出了如何排序列表：

--== Red 0.5.1 ==-- 
Type HELP for starting information. 

red>> list: [1 9 6 8]
== [1 9 6 8]
red>> sort list
== [1 6 8 9]

我想把这张单子倒过来排序。我该怎么做？我尝试过各种组合：

red>> sort !list 
*** Script error: !list has no value
*** Where: sort
red>> !sort list
*** Script error: !sort has no value
*** Where: try
red>> sort reverse list
== [1 6 8 9]
red>> sort list reverse
*** Script error: reverse is missing its series argument
*** Where: reverse

它是基于堆栈的，所以您需要从右向左读取它。你可以这样写：

red>> reverse (sort list)

---

更好地想象。

排序有一个/反向细化，它使您能够实现您想要的：

red>> sort/reverse [1 9 6 8]
== [9 8 6 1]

还要注意，SORT会修改其参数

通过使用集成帮助系统，您可以了解有关排序（或任何其他功能）工作原理的更多信息：

red>> help sort

USAGE:
    sort series  /case  /skip  size  /compare  comparator  /part  length  /all  /reverse  /stable

DESCRIPTION:
     Sorts a series (modified); default sort order is ascending. 
     sort is of type: action!

ARGUMENTS:
     series  [series!]

REFINEMENTS:
     /case => Perform a case-sensitive sort.
     /skip => Treat the series as fixed size records.
         size  [integer!]
     /compare => Comparator offset, block or function.
         comparator  [integer! block! any-function!]
     /part => Sort only part of a series.
         length  [number! series!]
     /all => Compare all fields.
     /reverse => Reverse sort order.
     /stable => Stable sorting.

---

当然，请注意，

排序/反向列表

将比

反向排序列表

更有效（因为排序过程本身将作为单个操作反向进行…），当然，您是对的。我还没有检查/reverse是否已经以红色实现：）…出于教育目的，也许值得指出的是，使用自定义比较函数可以实现这一功能，该函数可以扭转比较的偏差：

sort/compare[1 6 9 8]function[a b][a>b]

。

red>> help sort

USAGE:
    sort series  /case  /skip  size  /compare  comparator  /part  length  /all  /reverse  /stable

DESCRIPTION:
     Sorts a series (modified); default sort order is ascending. 
     sort is of type: action!

ARGUMENTS:
     series  [series!]

REFINEMENTS:
     /case => Perform a case-sensitive sort.
     /skip => Treat the series as fixed size records.
         size  [integer!]
     /compare => Comparator offset, block or function.
         comparator  [integer! block! any-function!]
     /part => Sort only part of a series.
         length  [number! series!]
     /all => Compare all fields.
     /reverse => Reverse sort order.
     /stable => Stable sorting.