C# 将字符串数组以树型结构化

例如字符串数组：

string[] arr = { "1","3-4-5-6-7", "2","3-4","3-4-5","3-4-5-6", "3", "6", "4", "6-1", "6-2", "5", "6-1-1","1-1","2-1", "1-2-2", "1-1-2", "2-2","1-1-1" };

目的想要树型结构化：

下面开始实现：

先定义一个TreeNode类

 public class TreeNode
    {
        public string Value { get; set; }
        public List<TreeNode> Children { get; set; }

        public TreeNode(string value)
        {
            Value = value;
            Children = new List<TreeNode>();
        }
    }

具体实现

TreeNode root = new TreeNode("root");
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