QDataStream 和QByteArray
QByteArray msg = tcpSocket->readAll();
QDataStream packet(msg);
编译时一直报 error: variable 'QDataStream packet' has initializer but incomplete type
解决：在cpp中增加
#include "mainwindow.h"
QByteArray msg = tcpSocket->readAll();
QDataStream packet(msg);
编译时一直报 error: variable 'QDataStream packet' has initializer but incomplete type
解决：在cpp中增加
#include "mainwindow.h"