Qt 獲取文件路徑、文件名、后綴

QString file_full, file_name, file_path，file_suffix ;  2 QFileInfo fileinfo;  3 file_full = QFileDialog::getOpenFileName(this,.....);  4 fileinfo = QFileInfo(file_full);  5 //文件名
file_name = fileinfo.fileName();  7 //文件后綴
file_suffix = fileinfo.suffix()  9 //絕對路徑
file_path = fileinfo.absolutePath();