解释下面的函数及其四个参数connect (sender, SIGNAL(signal), receiver, SLOT(slot));
举一反三
- connect(timer,SIGNAL(timeout(),this,SLOT()timeupdate()))中,timeout()是();timeupdate()是( )。 A: 发送的信号 B: 执行的槽 C: 发送信号的对象 D: 接收信号的对象
- connect(timer,SIGNAL(timeout()),this,SLOT(timerUpDate()));中,timeout()是( ),timerUpdate()是( ) A: 发送的信号 B: 执行的槽 C: 发送信号的对象 D: 接收信号的对象
- 在Qt程序设计中,凡是包含signal和slot的类中都要加上Q_OBJECT的定义。(<br/>)
- The main function of time signal is to connect details.
- GPS satellites send signal information, such as time, position of satellite, position of receiver, and traffic condition on the earth.