multidimensional-array - F# 打印出一个二维字符串数组

Question

我目前正在开发一款名为 Neutron 的棋盘游戏。

let boardArray = array2D [ ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"];
                           ["*"; "1"; "*"; "2"; "*"; "3"; "*"; "4"; "*"; "5"; "*"];
                           ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"];
                           ["*"; "0"; "*"; "0"; "*"; "0"; "*"; "0"; "*"; "0"; "*"];
                           ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"];
                           ["*"; "0"; "*"; "0"; "*"; "N"; "*"; "0"; "*"; "0"; "*"];
                           ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"];
                           ["*"; "0"; "*"; "0"; "*"; "0"; "*"; "0"; "*"; "0"; "*"];
                           ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"];
                           ["*"; "A"; "*"; "B"; "*"; "C"; "*"; "D"; "*"; "E"; "*"];
                           ["*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"; "*"] ]

我有这个字符串数组。我的问题是，我该如何打印这样的数组？

我最初的想法是使用嵌套的 for 循环打印出一些 boardArray.[row, column] ，但是，据我所知， row项目在
for row in boardArray do是 obj 类型；我不能完全通过需要 int 的 obj。我可以使用转换吗？我应该使用不同的方法？我是否严重误解了每个循环的 F# 用法？

Answer 1

通过使用 for..to 循环解决:

let initiateBoard = 
 for r = 0 to Array2D.length1 boardArray - 1 do
  for c = 0 to Array2D.length2 boardArray - 1 do
   printfn "%A " boardArray.[r, c]

这将在新行上打印出每个元素，因此除此之外还需要一个单独的处理间距的函数。