<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[liuying263的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/liuying263</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; liuying263]]></copyright><item><title><![CDATA[返回const类型指针转换过程]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/129704952</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/129704952</guid><author>liuying263</author><pubDate>Wed, 22 Mar 2023 10:48:06 +0800</pubDate><description><![CDATA[HSGraphicDoc* HSGraphic::GetGraphicDoc() const
{
    HSGraphicDoc *pGraphicDoc = nullptr;    if (Graphic_GraphicDoc == GetType())
    {
        HSGraphicDoc const* pGraphicDoc = static_cast<HSGraphicDoc const*>(this);
        return const_cast<HSGraphicDoc]]></description><category></category></item><item><title><![CDATA[两种情况：delete时，不调用析构函数的]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/129665779</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/129665779</guid><author>liuying263</author><pubDate>Mon, 20 Mar 2023 13:42:02 +0800</pubDate><description><![CDATA[下面这段函数代码编译运行时没有问题的，不需要CPtr的定义class CPtr;// 预定义public:m_pPtr = p;private:当在Main中使用时，delete时，我们或许认为 m_pPtr 的析构函数会被调用// 其中xxx为CPtr类型指针但实际上，如果PtrUser.h先被包含的话，delete m_pPtr时，是不会调用CPtr析构函数的。]]></description><category></category></item><item><title><![CDATA[动态库和静态库，混合使用下的单例bug]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127692389</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127692389</guid><author>liuying263</author><pubDate>Fri, 04 Nov 2022 16:55:24 +0800</pubDate><description><![CDATA[动态库和静态库，混合使用下的单例bug]]></description><category></category></item><item><title><![CDATA[M_PI_2 报错]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127687273</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127687273</guid><author>liuying263</author><pubDate>Fri, 04 Nov 2022 13:43:31 +0800</pubDate><description><![CDATA[M_PI_2 报错]]></description><category></category></item><item><title><![CDATA[QActionGroup - setExclusive（互斥）]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127666983</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127666983</guid><author>liuying263</author><pubDate>Thu, 03 Nov 2022 11:32:48 +0800</pubDate><description><![CDATA[QActionGroup - setExclusive（互斥）]]></description><category></category></item><item><title><![CDATA[QscrollBar 类]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127620190</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127620190</guid><author>liuying263</author><pubDate>Mon, 31 Oct 2022 17:44:57 +0800</pubDate><description><![CDATA[QscrollBar 类]]></description><category></category></item><item><title><![CDATA[QWidget默认尺寸]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127619896</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127619896</guid><author>liuying263</author><pubDate>Mon, 31 Oct 2022 17:30:49 +0800</pubDate><description><![CDATA[QWidget默认尺寸]]></description><category></category></item><item><title><![CDATA[AA_EnableHighDpiScaling]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127509878</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127509878</guid><author>liuying263</author><pubDate>Tue, 25 Oct 2022 11:16:47 +0800</pubDate><description><![CDATA[QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling)]]></description><category></category></item><item><title><![CDATA[QSlider使用记录]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127440618</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127440618</guid><author>liuying263</author><pubDate>Fri, 21 Oct 2022 10:13:48 +0800</pubDate><description><![CDATA[QSlider使用记录]]></description><category></category></item><item><title><![CDATA[QMdiArea使用中遇到的问题]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127424522</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127424522</guid><author>liuying263</author><pubDate>Thu, 20 Oct 2022 12:12:20 +0800</pubDate><description><![CDATA[QMdiArea使用中遇到的问题]]></description><category></category></item><item><title><![CDATA[QStringLiteral]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127387803</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127387803</guid><author>liuying263</author><pubDate>Tue, 18 Oct 2022 14:36:44 +0800</pubDate><description><![CDATA[QStringLiteral]]></description><category></category></item><item><title><![CDATA[视口和窗口的转换]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127367678</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127367678</guid><author>liuying263</author><pubDate>Tue, 18 Oct 2022 11:07:35 +0800</pubDate><description><![CDATA[视口和窗口的转换]]></description><category></category></item><item><title><![CDATA[QPainter二维绘图（三）]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127361594</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127361594</guid><author>liuying263</author><pubDate>Mon, 17 Oct 2022 13:18:45 +0800</pubDate><description><![CDATA[采用QPainter绘图]]></description><category></category></item><item><title><![CDATA[QPainter二维绘图（二）]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127358545</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127358545</guid><author>liuying263</author><pubDate>Mon, 17 Oct 2022 11:10:13 +0800</pubDate><description><![CDATA[QPainter二维绘图（二）]]></description><category></category></item><item><title><![CDATA[QPen画笔]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127347465</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127347465</guid><author>liuying263</author><pubDate>Sun, 16 Oct 2022 15:10:46 +0800</pubDate><description><![CDATA[QPen用户绘图时对线条进行设置，包括线宽、颜色、线型等。]]></description><category></category></item><item><title><![CDATA[QFont字体]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127345417</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127345417</guid><author>liuying263</author><pubDate>Sun, 16 Oct 2022 12:29:38 +0800</pubDate><description><![CDATA[QFont字体]]></description><category></category></item><item><title><![CDATA[QPainter二维绘图（一）]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127344124</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127344124</guid><author>liuying263</author><pubDate>Sun, 16 Oct 2022 11:15:59 +0800</pubDate><description><![CDATA[QPainter二维绘图]]></description><category></category></item><item><title><![CDATA[virtual与override的区别]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127342005</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127342005</guid><author>liuying263</author><pubDate>Sat, 15 Oct 2022 23:40:19 +0800</pubDate><description><![CDATA[virtual与override的区别]]></description><category></category></item><item><title><![CDATA[QTransform世界变化]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127317203</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127317203</guid><author>liuying263</author><pubDate>Fri, 14 Oct 2022 13:19:42 +0800</pubDate><description><![CDATA[世界变化（QTransform ）是在窗口-视口转换之外使用的变换矩阵]]></description><category></category></item><item><title><![CDATA[QTextEdit 保存HTML文档]]></title><link>https://blog.youkuaiyun.com/liuying263/article/details/127314183</link><guid>https://blog.youkuaiyun.com/liuying263/article/details/127314183</guid><author>liuying263</author><pubDate>Fri, 14 Oct 2022 10:12:37 +0800</pubDate><description><![CDATA[QTextEdit 保存HTML文档]]></description><category></category></item></channel></rss>