procedure GetDirectories(list: TlistView; Directory: string; Item: Tlistitem; IncludeFiles: boolean);
var
SearchRec: TSearchRec;
begin
   list.Items.BeginUpdate;//准备更新
   list.Items.Clear;  //清空list内容
   if Directory[length(Directory)] <> ''''\'''' then //判断路径 
         Directory := Directory + ''''\'''';  //设置路径
   if FindFirst(Directory + ''''*.*'''',faDirectory,SearchRec) = 0 then       begin
             repeat   
             if (SearchRec.Attr and faDirectory = faDirectory) and (SearchRec.Name[1] <> ''''.'''') then  
                 begin
                        if (SearchRec.Attr and faDirectory > 0) then                               begin  Item := list.Items.Add;  //增加item
                                        item.Caption:=SearchRec.Name; 
                                        item.ImageIndex:=6;
                              end;
                        GetDirectories(list,Directory + SearchRec.Name,Item,IncludeFiles);
                 end
                               else
               if IncludeFiles then
                            if SearchRec.Name[1] <> ''''.'''' then
                                    begin
                                           item:=list.Items.Add;
                                           item.Caption:=SearchRec.Name;
                                           item.ImageIndex:=6;
                                    end;
                      until FindNext(SearchRec) <> 0;
//FindClose(SearchRec);
               end;
      list.Items.EndUpdate;
end;

定义Directory：

procedure makedir(modulname,pathname,dirname,filepath:string);//创建目录（共4级，朋友如果觉得用得上的话，可以自己加参数）
begin
try
    if not directoryexists(frootpath+modulname) then
      createdir(FRootPath+modulname);
    if not DirectoryExists(FRootPath+modulname+''''\''''+pathname) then
    createdir(FRootPath+modulname+''''\''''+pathname);
    if not directoryexists(FRootPath+modulname+''''\''''+pathname+''''\''''+dirname) then
    createdir(FRootPath+modulname+''''\''''+pathname+''''\''''+dirname);
    if filepath<>'''''''' then
    if not directoryexists(FRootPath+modulname+''''\''''+pathname+''''\''''+dirname+''''\''''+filepath) then
    createdir(FRootPath+modulname+''''\''''+pathname+''''\''''+dirname+''''\''''+filepath)
    except
    On E:Exception do begin
    abort;
    end;
    end;
    banjin.N21.Enabled:=true;
   liucheng.MenuItem1.Enabled:=true;
   yanzheng.N21.Enabled:=true;
    banjin.SpeedButton1.Enabled:=true;
    liucheng.SpeedButton1.Enabled:=true;
    yanzheng.SpeedButton1.Enabled:=true;
    banjin.toolbutton1.Enabled:=true;
    liucheng.toolbutton1.Enabled:=true;
    yanzheng.toolbutton1.Enabled:=true;
    if filepath='''''''' then
    filespath:=FRootPath+modulname+''''\''''+pathname+''''\''''+dirname+''''\''''+filepath else
    filespath:=FRootPath+modulname+''''\''''+pathname+''''\''''+dirname+''''\''''+filepath+''''\'''';
    banjin.StatusBar1.Panels[0].Text:=''''你目前所在的位置:''''+filespath;
    liucheng.StatusBar1.Panels[0].Text:=''''你目前所在的位置:''''+filespath;
    yanzheng.StatusBar1.Panels[0].Text:=''''你目前所在的位置:''''+filespath;
end;
如果是二级或一级目录的话，只要加上if filepath<>'''''''' then
类似的判断就可以了，例如：makedir(''''设计规范'''',''''电子件'''',''''电路设计规范'''','''''''');

注：在这里写的两个过程没有实现读取windows的图标，如果想实现这一功能的话要自己动手写了 ^_^