自定义QTableView左上角按钮内容c++includeincludeincludeincludeincludeincludeincludeclassQTableViewCornerProxy:publicQObject{QOBJECTpublic:usingQObject::QObject;voidattach(QTableViewview,constQString&text,constQIcon&icon{});voiddetach(QTableViewview);protected:booleventFilter(QObjectwatched,QEventevent)override;voidinitStyleOption(QAbstractButtonbutton,QStyleOptionHeaderoption)const;};c++voidQTab...