1、解决因切分来车状态信息时，切分异常的问题

src/qt_source/mainwindow.cpp

@@ -111,7 +111,7 @@ MainWindow::MainWindow(QWidget *parent)
         });
 
         // 接收子线程的消息提示
-        connect(this->tcpClient, &TcpClient::sendTcpInfoSignals, this, [=](QString info){
+        connect(this->tcpClient, &TcpClient::sendTcpInfoSignals, this, [=](const QString& info){
             this->logInfo(info);
             this->statusInfo->setText(info);
             if (info == "链接服务端超时"
@@ -123,6 +123,10 @@ MainWindow::MainWindow(QWidget *parent)
                 this->videoHasTrain = false;
             }
         });
+        // 接收子线程的TCP消息内容展示
+        connect(this->tcpClient, &TcpClient::getTcpInfoSignals, this, [=](const QString& info){
+            this->logInfo(info);
+        });
 
         emit connect_socket(this->socketServerConfig_.server_ip, this->socketServerConfig_.server_port);