[QT学习]拷贝文件

sourceDir源绝对路径，toDir目标绝对路径

 //拷贝文件：
 bool FileOperation::copyFileToPath(QString sourceDir ,QString toDir, bool coverFileIfExist)
 {
     toDir.replace("\\","/");
     if (sourceDir == toDir){
         return true;
     }
     if (!QFile::exists(sourceDir)){
         return false;
     }
     QFileInfo fi(toDir);
     QString dirPath=fi.absolutePath();//取路径
     QDir *createfile = new QDir;
     bool exist=createfile->exists(dirPath);
     if(!exist)
     {
         createfile->mkdir(dirPath);
     }
     exist = createfile->exists(toDir);
     if (exist){
         if(coverFileIfExist){
             createfile->remove(toDir);
         }
     }//end if

     if(!QFile::copy(sourceDir, toDir))
     {
         return false;
     }
     return true;
 }