学习QT的感悟

1. <C++ GUI Qt 4 编程（第二版）>

     the first part <basic qt> 

           Goal: be familiar with most of qt widget and create form application

            Deadline:June19 ~ June21

 Caution1:

         trying to specify signal or slot argument values when connecting will cause your code to fail at run-time. Theconnectfunction understands only the argumenttypes

         The following example will fail at run-time

QObject::connect(sender, SIGNAL(textChanged("testString")), receiver, SLOT(setText("testString")));

 

Caution2:

            signal and slot argument types must be the same when connecting           

     QObject::connect(sender, SIGNAL(textChanged(QString)), receiver, SLOT(setText(int)));

 Inconvenience：

           Qt cann't automatically alter all the referring when the object name  is  changed.

 

2.  the second part <medium qt>

3.  the third part <high qt>