1、将工程从动态库变为命令行程序：修改pro文件、删除文件witmotiondll_global.h；

2、继承串口基类SerialPortBase实现串口类QtSerialport；
3、写维特惯导设置示例程序main.cpp；

witmotionDll.pro

@@ -1,16 +1,21 @@
-#-------------------------------------------------
-#
-# Project created by QtCreator 2022-05-25T15:16:09
-#
-#-------------------------------------------------
+QT += core
+QT -= gui
+QT += serialport
+
+CONFIG += c++11
 
 TARGET = witmotionDll
-TEMPLATE = lib
+CONFIG += console
+CONFIG -= app_bundle
 
-DEFINES += WITMOTIONDLL_LIBRARY
+TEMPLATE = app
+
+SOURCES += main.cpp \
+    witmotiondll.cpp \
+    qtserialport.cpp
 
 # The following define makes your compiler emit warnings if you use
-# any feature of Qt which as been marked as deprecated (the exact warnings
+# any feature of Qt which as been marked deprecated (the exact warnings
 # depend on your compiler). Please consult the documentation of the
 # deprecated API in order to know how to port your code away from it.
 DEFINES += QT_DEPRECATED_WARNINGS
@@ -20,16 +25,8 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
-SOURCES += \
-    witmotiondll.cpp
-
 HEADERS += \
-        witmotiondll.h \
-        witmotiondll_global.h \  
+    register.h \
     serialportbase.h \
-    register.h
-
-unix {
-    target.path = /usr/lib
-    INSTALLS += target
-}
+    witmotiondll.h \
+    qtserialport.h