1. 修复模拟POS界面的button数据错误Bug.

POS/mainwindow.cpp

@@ -312,7 +312,7 @@ void MainWindow::onBtnReqPosSelected()
 
     auto btn = qobject_cast<ReqDataBtn*>(sender());
     QJsonObject rspObj;
-    doRequest(QString("%1_%2").arg(TagReqData).arg(btn->text()), rspObj);
+    doRequest(QString("%1_%2").arg(TagReqPos).arg(btn->text()), rspObj);
 
     //! NOTE 添加session: fm_open_id
     QString fmOpenId = rspObj["fm_open_id"].toString();