QT報錯：
:-1: error: [Makefile.Debug:1234: debug/moc_serialportthread.cpp] Error 1
原因：
使用了Q_OBJECT，卻未繼承元物件系統基類
解決：
直接或間接繼承QObject類
class serialPortThread : public QThread
:-1: error: [Makefile.Debug:1234: debug/moc_serialportthread.cpp] Error 1
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