qfedu-qt-level/homework-day1/main.cpp

#include "widget.h"
#include "widget1.h" // 题目1
#include "widget2.h" // 题目2
#include "widget3.h" // 题目3
#include "widget4.h" // 题目4
#include "widget5.h" // 题目5
#include "widget7.h" // 题目6，题目7
#include "widget8.h" // 题目7

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
//    Widget7 w;
//    w.show();

        Widget7 judge1;
        Widget7 judge2;
        Widget7 judge3;

        Widget8 w8;

        judge1.show();
        judge2.show();
        judge3.show();

        // 建立信号槽连接
        w8.connect(&judge1,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);
        w8.connect(&judge2,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);
        w8.connect(&judge2,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);


//        w8.show();

    return a.exec();
}