参考:https://help.simtutai.cn/docs/5-2-chuang-ti#3035c39806aff234f8c71b1241d3d112
1)直接调用
vector<uint8_t> cmd;
Wcmn* cmnPage = (Wcmn*) hmiApp->cWnd;
cmnPage->wMCom1->writeData(cmd);
2)封装成函数调用
int PortWrite(const vector<uint8_t>& cmd) {
vector<uint8_t> cmd;
Wcmn* cmnPage = (Wcmn*) hmiApp->cWnd;
cmnPage->wMCom1->writeData(cmd);
return 0;
}