qt中獲取文件路徑和文件名

QString file_full, file_name, file_path，file_suffix ;
QFileInfo fileinfo;

file_full = QFileDialog::getOpenFileName(this,.....);

fileinfo = QFileInfo(file_full);
//文件名
file_name = fileinfo.fileName();
//文件后綴
file_suffix = fileinfo.suffix()
//絕對路徑
file_path = fileinfo.absolutePath();