/// <summary>
        /// 获取选择文件夹中所有文件（不含文件夹）
        /// </summary>
        /// <param name="prompt"></param>
        /// <returns></returns>
        public static FileInfo[] GetAllFiles(string prompt)
        {
            FileInfo[] result = null;
            FolderBrowserDialog folderDialog = new FolderBrowserDialog();
            folderDialog.Description = prompt;
            if (folderDialog.ShowDialog() == DialogResult.OK)
            {
                string foldPath = folderDialog.SelectedPath;
                DirectoryInfo theFolder = new DirectoryInfo(foldPath);
                result = theFolder.GetFiles();
            }
            return result;
        }
 
 

选择目录路径：
 
QString dirpath = QFileDialog::getExistingDirectory(this,"选择目录","./",QFileDialog::ShowDirsOnly);
 
选择单个文件路径：
 
QString filepath = QFileDialog::getOpenFileName(this,"选择单个文件","./");
 
选择多个文件路径：
 
QStringList filepaths = QFileDialog::getOpenFileNames(this,"选择多个文件","./");
 
 

    TCHAR szBuffer[MAX_PATH] = {0}; 
    BROWSEINFO bi; 
    ZeroMemory(&bi,sizeof(BROWSEINFO)); 
    bi.hwndOwner = NULL; 
    bi.pszDisplayName = szBuffer; 
    bi.lpszTitle = _T("从下面选文件夹目录:"); 
    bi.ulFlags = BIF_RETURNFSANCESTORS; 
    LPITEMIDLIST idl = SHBrowseForFolder(&bi); 
    if (NULL == idl) 
    { 
        return; 
    } 
    SHGetPathFromIDList(idl,szBuffer);
    AfxMessageBox(szBuffer);
 
打开文件
 
TCHAR szBuffer[MAX_PATH] = {0}; 
OPENFILENAME ofn= {0}; 
ofn.lStructSize = sizeof(ofn); 
ofn.hwndOwner = m_hWnd; 
ofn.lpstrFilter = _T(Exe文件(*.exe)*.exe所有文件(*.*)*.*);//要选择的文件后缀 
ofn.lpstrInitialDir = _T(D:\Program Files);//默认的文件路径 
ofn.lpstrFile = szBuffer;//存放文件的缓冲区 
ofn.nMaxFile = sizeof(szBuffer)/sizeof(*szBuffer); 
ofn.nFilterIndex = 0; 
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_EXPLORER ;//标志如果是多选要加上OFN_ALLOWMULTISELECT
BOOL bSel = GetOpenFileName(&ofn);
 
 

 这个实现比较简单，就是借助Qt中QFileDialog库的getExistingDirectory()函数，可以直接返回当前文件夹的路径。
 
头文件声明
 
#include<QFileDialog>
 
主程序
 
 QString filename = QFileDialog::getExistingDirectory();
 
获取文件夹下子文件名称
 
头文件声明
 
#include <QDebug>
#include<QFileDialog>
 
主程序
 
    QString filename = QFileDialog::getExistingDirectory();
    QDir *dir=new QDir(filename);
    QStringList filter;
    QList<QFileInfo> *fileInfo=new QList<QFileInfo>(dir->entryInfoList(filter));
    for(int i = 0;i<fileInfo->count(); i++)
    {
        qDebug()<<fileInfo->at(i).filePath();
        qDebug()<<fileInfo->at(i).fileName();
    }