// 从搜索记录中判断是否是子目录
function IsValidDir(SearchRec:TSearchRec):Boolean;
begin
if (SearchRec.Attr=16) and
(SearchRec.Name<>'.') and
(SearchRec.Name<>'..') then
Result:=True
else
Result:=False;
end;
// 子目录级的文件查询--查询主体函数
function SearchFile(mainpath:string; filename:string;var foundresult:TStrings):Boolean;
var
i:integer;
Found:Boolean;
subdir1:TStrings;
searchRec:TsearchRec;
begin
found:=false;
if Trim(filename)<>'' then
begin
subdir1:=TStringList.Create;//字符串列表必须动态生成
//找出所有下级子目录。
if (FindFirst(mainpath+'*.*', faDirectory, SearchRec)=0) then
begin
if IsValidDir(SearchRec) then
subdir1.Add(SearchRec.Name);
while (FindNext(SearchRec) = 0) do
begin
if IsValidDir(SearchRec) then
subdir1.Add(SearchRec.Name);
end;
end;
FindClose(SearchRec);
//查找当前目录。
if FileExists(mainpath+filename) then
begin
found:=true;
foundresult.Add(mainpath+filename);
end;
//这是递归部分,查找各子目录。
for i:=0 to subdir1.Count-1 do
found:=Searchfile(mainpath+subdir1.Strings[i]+ '\',Filename,foundresult)or found;
//资源释放并返回结果
subdir1.Free;
end;
result:=found;
end;