C#文件目录树，给定多个路径（路径必须是有同一个父亲）

测试数据类型：
 

E:\Chrome下载文件\src\t

E:\Chrome下载文件\index

E:\Chrome\index\test

E:\Chrome下载文件\chen

E:\Chrome下载文件\ding

E:\Chrome下载文件\jia

数据结构类：

    public class FileConstruction
    {
        public string title { get; set; }
        public string key { get; set; }
        public List<FileConstruction> children = new List<FileConstruction>();
    }

所需要得到的数据结构：

{
	"children": [{
		"children": [{
			"children": [{
				"children": [{
					"children": [{
						"children": [],
						"title": "leve",
						"key": null
					}],
					"title": "test",
					"key": null
				}, {
					"children": [],
					"title": "leve",
					"key": null
				}],
				"title": "src",
				"key": null
			}],
			"title": "Chrome下载文件",
			"key": null
		}],
		"title": "E:",
		"key": null
	}],
	"title": null,
	"key": null
}

自己想了老久了，有些地方可能还需要优化，代码冗余等等。。

//构建目录      
 public static void  BuildDirectory(FileConstructionfs,List<string> list)
        {
            var temp = new FileConstruction();
            List<FileConstruction> judges = new List<FileConstruction>();          
            for(int index=0;index<list.Count;index++)
            {
                int count = list[index].Split('\\').Count();
                string[] str=list[index].Split('\\');
                for(int i=0;i<count;i++)
                {
                    FileConstructionfm = new FileConstruction();
                    fm.title = str[i];
                    judges = temp.children;
                    var flag = Judge(judges, str[i]);
                    if (i!=0)
                    {                      
                        if (flag!=null)
                        {
                            temp = flag;
                        }
                        else
                        {
                            temp.children.Add(fm);
                            temp = fm;
                        }
                       
                    }
                    else
                    {                                              
                        if (flag != null)
                        {
                            temp = flag;
                        }
                        else
                        {
                            temp = fm;
                            fs.children.Add(temp);
                        }
                    }
                    
                }
                temp = fs;
            }
        }
//查重
        public static FileConstructionJudge(List<FileConstruction> fs,string target)
        {
            var temp = new FileConstruction();
            for(int index=0;index<fs.Count;index++)
            {
                if(fs[index].title==target)
                {
                    temp = fs[index];
                    return temp;
                }               
            }
            return null;
        }