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# QQtApp 开发诀窍
- 找到常用中转Class就基本掌握了所有类的使用。
- 比如
- QByteArray 这个类用于QString qint QChar char* QBuffer QIODevice等类型和字节序列设备之间的字符转换。它是个重要的中转类别。
- QImage 这个类用于QPixmap 本地文件 QIcon的转换通过它把文件传到屏幕上。它是个重要的图像中转类型。