qt+property system属性系统READ使用用例代码+详细注释

#include "qtguiapptest.h" #include "ui_qtguiapptest.h" #include"mypushbtn.h" QtGuiAppTest::QtGuiAppTest(QWidget *parent) : QWidget(parent),ui(new Ui::QtGuiAppTest) { ui->setupUi(this); MyPushButton* mybtn = new MyPushButton(this); mybtn->move(100, 100); mybtn->setText("testppt"); pObj = mybtn; //设置时间间隔1秒 this->startTimer(1000); } QtGuiAppTest::~QtGuiAppTest() { delete pObj; } void QtGuiAppTest::timerEvent(QTimerEvent* event) { //根据属性名nClkCount获取mybtn按钮按下的次数 if(pObj) { int nClkNum = pObj->property("nClkCount").toInt(); ui->label->setText(QString::number(nClkNum)); } }