Fix bug can connect two wired network at the same time

src/mainwindow.cpp

@@ -1356,12 +1356,6 @@ void MainWindow::onNewConnAdded(int type) {
 // 获取lan列表回调
 void MainWindow::getLanListDone(QStringList slist)
 {
-    qDebug()<<"------------";
-    foreach (QString str, slist) {
-        qDebug()<<str;
-    }
-    qDebug()<<"------------";
-
     if (this->is_btnWifiList_clicked == 1) {
         return;
     }

src/onelancform.cpp

@@ -375,6 +375,9 @@ void OneLancForm::on_btnConnSub_clicked()
 
 void OneLancForm::toConnectWiredNetwork()
 {
+    if (mw->is_stop_check_net_state == 1) {
+        return;
+    }
     mw->is_stop_check_net_state = 1;
     QThread *t = new QThread();
     BackThread *bt = new BackThread();