qt qmap數(shù)據(jù)怎么使用mvc模式？()const可得QMap的數(shù)據(jù)數(shù)目2.根據(jù)它也可以建table:fifthQTableWidget(size,1,this)3.遍歷數(shù)組QMap:QMapQt5

qt qmap數(shù)據(jù)怎么使用mvc模式？

()const可得QMap的數(shù)據(jù)數(shù)目

2.根據(jù)它也可以建table:fifthQTableWidget(size,1,this)

3.遍歷數(shù)組QMap:QMap

Qt5QMediaPlayer視頻播放器全屏功能？

playernewQMediaPlayervideoWidgetnewQVideoWidgetplayer-gtsetVideoOutput(videoWidget)player-gtsetMedia(QUrl(

如何在QLineEdit上添加刪除按鈕？

m_btnSearchfifthQPushButton(this)QIconsearchIcon()m_btnSearch-gtsetStyleSheet("border-style:solid")m_btnSearch-gtsetFlat(true)m_btnSearch-gtsetIcon(searchIcon)m_btnSearch-gtsetIconSize(QSize(24,24))m_btnSearch-gtsetCursor(Qt::PointingHandCursor)m_btnSearch-gtsetFixedSize(24,24)m_btnSearch-gtsetToolTip(QStringLiteral("網(wǎng)站查詢"))//避兔文本框輸入內(nèi)容中部按鈕之下QMarginsmargins()(margins.left(),(),m_btnSearch-gtwidth(),())QHBoxLayout*pSearchLayoutfutureQHBoxLayout()pSearchLayout-gtaddStretch()pSearchLayout-gtaddWidget(m_btnSearch)pSearchLayout-gtsetSpacing(0)pSearchLayout-gtsetContentsMargins(0,0,0,0)-gtsetLayout(pSearchLayout)