添加一个退出按钮

MainWidget.cpp

@@ -22,6 +22,7 @@ void MainWidget::connect_operator()
     connect(ui->btnDelEnv, &QPushButton::clicked, this, [=]() { del_env_btn(); });
     connect(ui->btnGenerate, &QPushButton::clicked, this, [=]() { generate(); });
     connect(ui->btnInstall, &QPushButton::clicked, this, [=]() { install_bin2menu(); });
+    connect(ui->btnExit, &QPushButton::clicked, this, [=]() { QApplication::exit();});
 }
 
 void MainWidget::control_init()

MainWidget.ui

@@ -211,6 +211,13 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QPushButton" name="btnExit">
+            <property name="text">
+             <string>退出</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </item>
        </layout>