c# - 查找长字符串中所有以[开头和]结尾的字符串部分

我有一个有趣的问题，我想找到一个最好的解决方案，我已经尽力与正则表达式。我想要的是使用正则表达式或任何其他方法，使用c从这个字符串中查找所有的col_x值。

[col_5] is a central heating boiler manufacturer produce boilers under [col_6]
 brand name . Your selected [col_7] model name is a [col_6] [col_15] boiler.
[col_6] [col_15] boiler [col_7] model [col_10] came in production untill
[col_11].  [col_6] model product index number is [col_1] given by SEDBUK
'Seasonal Efficiency of a Domestic Boiler in the UK'. [col_6] model have
qualifier [col_8] and GCN  [col_9] 'Boiler Gas Council No'. [col_7] model
source of heat for a boiler combustion is a [col_12].

所需的输出是一个数组

var data =["col_5","col_10","etc..."]

编辑
我的尝试：

string text = "[col_1]cc[col_2]asdfsd[col_3]";
var matches = Regex.Matches(text, @"[[^@]*]");
var uniques = matches.Cast<Match>().Select(match => match.Value).ToList().Distinct();

    foreach(string m in uniques)
    {
        Console.WriteLine(m);

    }

但没有成功。

最佳答案

试试这样的：

string[] result = Regex.Matches(input, @"\[(col_\d+)\]").
                            Cast<Match>().
                            Select(x => x.Groups[1].Value).
                            ToArray();