Question

我似乎无法弄清楚这一点。

我想转换一下：

string foobarString = "[['Foo', 'bar'], ['Foo', 'bar'], ['Foo', 'bar']]";

到二维数组（或列表），看起来像这样：

fooBarArray[0] = Array['Foo', "bar"];
fooBarArray[1] = Array['Foo', "bar"];
fooBarArray[2] = Array['Foo', "bar"];
... etc.

我试过通过（“]，”）拆分，然后清理字符串并在之后创建一个数组。但这只是该死的UGLY！

我想要一个更干净的版本。在C＃中没有内置这种方法的方法吗？

//谢谢

Answer 1

首先，将其拆分为"[[", "], [", "]]"

var array1 = foobarString.Split(new string[] {"[[", "], [", "]]"}, StringSplitOptions.RemoveEmptyEntries);

array1将包含"'Foo', 'bar'"，"'Foo', 'bar'"，"'Foo', 'bar'" 然后，您可以按','

拆分每个元素

var fooBarArray = array1.Select(x => x.Split(',').ToArray()).ToArray()

你可以在一行中完成

var fooBarArray = foobarString.Split(new string[] { "[[", "], [", "]]" }, StringSplitOptions.RemoveEmptyEntries)
                .Select(x => x.Split(',').ToArray()).ToArray()

Answer 2

由于您的问题没有给我们足够的信息，我将假设您正在尝试将一些JSON转换为字符串数组。据我所知，C＃中没有构建方法。您可以使用扩展名。 Newtonsoft JSON

安装此软件包后，您将能够使用以下代码：

string foobarString = "[['Foo', 'bar'], ['Foo', 'bar'], ['Foo', 'bar']]";
var result = Newtonsoft.Json.JsonConvert.DeserializeObject<string[][]>(foobarString);

Answer 3

您可以使用Regex从源字符串中获取数组元素，然后将匹配项转换为数组。这样的事情可以解决问题：

  var input = "[['Foo', 'bar'], ['Foo', 'bar'], ['Foo', 'bar']]";

  // search for [' more than one word character, put them into group a ', 
  //   more than one whitespace ' more than one word character, put them into group b ']
  var arrayMatches = Regex.Matches(input, @"\['(?<a>[\w]+)',\s+'(?<b>[\w]+)'\]");

  var arrays = new List<string[]>();
  foreach (Match arrayMatch in arrayMatches)
  {
    // if the match was unsuccessful, take the next match
    if(!arrayMatch.Success)
      continue;

    // create a new string array with element in group a as first element and the element in groub b as the second one
    var array = new [] {arrayMatch.Groups["a"].Value, arrayMatch.Groups["b"].Value};
    arrays.Add(array);
  }

  // convert list to array
  return arrays.ToArray();

Answer 4

在那里你可以找到一些例子。 String.Split函数返回一个数组，以便您可以执行

string[] lines = foobarString.Split(new char[]{']'}, StringSplitOptions.RemoveEmtpyEntries);
fooBarArray[0] = lines[i].Split(new char[]{'[',']', ','}, StringSplitOptions.RemoveEmtpyEntries);

看一下这个主题：multidimensional-array-vs

Answer 5

{
    const string oldString = "[['Foo', 'bar'], ['Foo', 'bar'], ['Foo', 'bar']]";
    var list = Newtonsoft.Json.JsonConvert.DeserializeObject<List<List<string>>>(oldString);
}

C＃ - 将字符串转换为二维字符串数组

5 个答案: