[提问]请问下这段代码哪里有错 [复制链接]

QFileDialog a;

    currentFileName=a.getOpenFileName(this, tr("打开媒体文件"), "/home/pysz/1.mp4",  
                    tr("Video (*.rmvb *.rm *.avi *.wmv *.mkv *.asf *.3gp *.mov *.mp4 *.ogv)"));
    
    selectFileName = a.selectFile(currentFileName);

1.
getOpenFileName(.....) is a STATIC method.
you must write like this:
QFileDialog::getOpenFileName(....);
but not a.getOpenFileName;

2.
If you want to use a, must write like this:
QFileDialog a=new QFileDialog(......);
    if(a.exec()==QFileDialog::Accepted) // ok
    {
       QString file=a.electedFile();
    }

getOpenFileName是静态函数，
用法：QString filename=QFileDialog::getOpenFileName(......);