二维数组c#

本文关键字：二维数组 | 更新日期: 2023-09-27 18:18:23

我将像这样从用户那里获得输入- "99211,99212,99213_1,99214,99215_3"并将其存储在字符串中

string cpt = "99211,99212,99213_1,99214,99215_3";
cptarray = cpt.Split(',');

我得到的输出是

cptarray[0] = "99211"
cptarray[1] = "99212"
cptarray[2] = "99213_1"
cptarray[3] = "99214"
cptarray[4] = "99215_3"

但是我希望输出是:

cptarray[0][0] = "99211",""
cptarray[1][0] = "99212",""
cptarray[2][0] = "99213","1"
cptarray[3][0] = "99214",""
cptarray[4][0] = "99215","3"

如果我需要得到像上面那样的输出，那么我可以使用2D数组吗，这是正确的方法吗?

二维数组c#

根据提供的语法:

 cptarray[0][0]
 ...
 cptarray[4][0]

你想要一个锯齿形数组，而不是2D数组;你可以在Linq:

的帮助下构造这个数组
 var cptarray = cpt
   .Split(',')
   .Select(number => number.Split('_'))
   .Select(items => items.Length == 1 ? new string[] {items[0], ""} : items)
   .ToArray();

测试
string test = string.Join(Environment.NewLine, cptarray
  .Select((line, index) => string.Format("cptarray[{0}] = {1}", 
     index,
     string.Join(", ", line.Select(item => "'"" + item + "'"")))));
Console.Write(test);

输出
 cptarray[0] = "99211", ""
 cptarray[1] = "99212", ""
 cptarray[2] = "99213", "1"
 cptarray[3] = "99214", ""
 cptarray[4] = "99215", "3"
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