C++创建和删除文件夹的方法

一、说明：下面的测试代码在linux下运行通过

二、测试代码:
1、boost库和linux下的库函数

#include <iostream>
#include "boost/filesystem.hpp"
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>

using namespace std;
int main(int argc, char *argv[])
{
    const string exeFile = argv[0];
    cout << "exeFile:" << exeFile << endl;
    boost::filesystem::path tempExeFile(exeFile);
    const string exePath = tempExeFile.parent_path().string();
    cout << "exePath:" << exePath << endl;
    string tempDir = (tempExeFile.parent_path()/"tempFile").string();
    if(!boost::filesystem::exists(tempDir))
    {
        bool flag = boost::filesystem::create_directory(tempDir);
        if(flag)
        {
            cout << "tempDir:" << tempDir << endl;
            cout << "boost create success..." << endl;
        }
        else
        {
            cout << "boost create failure..." << endl;
        }
    }
    if(boost::filesystem::exists(tempDir))
    {
        bool flag = boost::filesystem::remove(tempDir);
        if(flag)
        {
            cout << "boost remove success..." << endl;
        }
        else
        {
            cout << "boost remove failure..." << endl;
        }
    }

    // linux function
    int index = exeFile.find_last_of('/');
    const string exePath2 = exeFile.substr(0,index);
    string tempDir2 = exePath2+"/tempFile2";
    if(access(tempDir2.c_str(),0) == -1)
    {
        int isSuccess = mkdir(tempDir2.c_str(),S_IRWXU);
        if(isSuccess == 0)
        {
            cout << "tempDir2: " << tempDir2 << endl;
            cout << "linux funciton create success!" << endl;
        }
        else
        {
            cout << "linux function create failure!" << endl;
        }
    }
    if(access(tempDir2.c_str(),0) == 0)
    {
        int isSuccess = rmdir(tempDir2.c_str());
        if(isSuccess == 0)
        {
            cout << "linux function remove success!" << endl;
        }
        else
        {
            cout << "linux function remove failure!" << endl;
        }
    }
    return 0;
}

二、Qt方法

#include <QCoreApplication>
#include <QDir>
#include <QDebug>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QString appPath = QCoreApplication::applicationDirPath();
    qDebug() << "appPath:" << appPath;
    QString tempDir = appPath+"/tempQdir";
    QDir pathDir(tempDir);
    if(!pathDir.exists())
    {
        bool isSuccess = pathDir.mkdir(tempDir);
        if(isSuccess)
        {
            qDebug() << "pathDir:" << pathDir << endl;
            qDebug() << "create pathDir success..." << endl;
        }
        else
        {
            qDebug() << "create pathDir failure" << endl;
        }
    }
    if(pathDir.exists())
    {
        bool isSuccess = pathDir.rmdir(tempDir);
        if(isSuccess)
        {
            qDebug() << "remove pathDir success..." << endl;
        }
        else
        {
            qDebug() << "remove pathDir failure..." << endl;
        }
    }
    return a.exec();
}