版本:Qt Creator 5.4.0_mingw
QT编写串口助手
1、extra qualification 'Widget::' on member ’ConvertHexChar‘ [-fpermissive]
error: extra qualification 'Widget::' on member 'ConvertHexChar' [-fpermissive char Widget::ConvertHexChar(char ch);
原因是: 在Widget 类的定义中把声明函数写成了 charWidget::ConvertHexChar(charch);
在类中应该写 char