#ifndef WIDGET_H #define WIDGET_H #include //添加头文件Qudpsocket #include namespace Ui { class Widget; } class Widget : public QWidget { Q_OBJECT public: explicit Widget(QWidget *parent = 0); ~Widget(); //1.创建对象 QUdpSocket *udpSocket; private slots: //2.打开连接槽函数 void on_btnOpen_clicked(); //3.readyRead槽函数 void readyRead(); //4.发送 void on_btnSend_clicked(); //关闭 void on_btnClose_clicked(); private: Ui::Widget *ui; }; #endif // WIDGET_H