使用函数:
System.IOUtils.TDirectory.GetFiles
所有重载:
class function GetFiles(const Path: string): TStringDynArray;
class function GetFiles(const Path: string; const Predicate: TFilterPredicate): TStringDynArray;
class function GetFiles(const Path, SearchPattern: string): TStringDynArray;
class function GetFiles(const Path, SearchPattern: string; const Predicate: TFilterPredicate): TStringDynArray;
class function GetFiles(const Path, SearchPattern: string; const SearchOption: TSearchOption): TStringDynArray; overload; static;
class function GetFiles(const Path, SearchPattern: string; const SearchOption: TSearchOption; const Predicate: TFilterPredicate): TStringDynArray; overload; static;
class function GetFiles(const Path: string; const SearchOption: TSearchOption; const Predicate: TFilterPredicate): TStringDynArray; overload; static;
参数说明和TDirectory.GetDirectories一样,只是目录换成文件
异常处理: 目录无效或目录不存在
示例:获取指定目录下,文件名包含'a'且不为隐藏属性的所有txt文本文件。
代码部分:
var
sFile: string;
fp: TDirectory.TFilterPredicate;
begin
//
fp := function(const Path: string; const SearchRec: TSearchRec): Boolean
begin
Result := (Pos('a', SearchRec.Name) > ) and
(SearchRec.Attr and faHidden <> faHidden); //文件名包含'a'且不为隐藏文件
end;
try
for sFile in TDirectory.GetFiles(
'H:\tmp1', //'H:\tmp1'
'*.txt', //后缀为.txt
TSearchOption.soAllDirectories,// 'H:\tmp1'目录下的所有文件
fp) do
ListBox1.Items.Add(sFile);
except
on e: Exception do
begin
MessageDlg(e.Message, mtError, [mbok], );
Exit;
end;
end;
end;