vs2013+qt5.3.2 QSerialPort 编译时提示找不到外部符号，连接出
类如下的错误 widget.obj : error LNK2019: 无法解析的外部符号 __declspec(dllimport) public: __thiscall QSerialPortInfo::QSerialPortInfo(class QSerialPortInfo const ) (__imp_??0QSerialPortInfo@@QAE@ABV0@@Z)，该符号在函数 private: void __thisc
类似如下的错误
widget.obj : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) public: __thiscall QSerialPortInfo::QSerialPortInfo(class QSerialPortInfo const &)" (__imp_??0QSerialPortInfo@@QAE@ABV0@@Z)，该符号在函数 "private: void __thiscall QList
因为qt-vs-addin-1.2.3-opensource.exe中的模块配置没有QSerialPort相关的配置，所以VS2013不会自动增加对应的外部库引用，需要手动增加QSerialPort.lib库依赖，具体操作如下：
1.VS2013中，单击菜单 项目-> xx项目属性...（Alt+F7），出现 xx属性页 对话框
2.单击 配置属性->连接器->输入，
3.附加依赖项 中增加 Qt5SerialPortd.lib文件（Debug配置） Qt5SerialPort.lib（Release配置）
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