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Mar 25th, 2017
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C++ 0.75 KB | None | 0 0
  1. #include "a.h"
  2. #include <QDebug>
  3.  
  4. A::A()
  5. {
  6.  
  7. }
  8.  
  9. void A::createConnect(const Data& data) {
  10.     qDebug() << "createConnect";
  11.     connect(this, &A::sig1, [&data]() {
  12.         qDebug() << data.value;
  13.     });
  14. }
  15.  
  16. void A::emitSignal() {
  17.     qDebug() << "emitSignal";
  18.     emit sig1();
  19. }
  20.  
  21.  
  22. Data::Data(int a) : value{a} {
  23.     qDebug() << "Data()";
  24. }
  25.  
  26. Data::~Data() {
  27.     qDebug() << "~Data()";
  28. }
  29.  
  30. //===========================
  31.  
  32. void test(A& a) {
  33.     qDebug() << "test start";
  34.     Data b(123);
  35.     a.createConnect(b);
  36.     qDebug() << "test end";
  37. }
  38.  
  39. void test2(A& a) {
  40.     a.emitSignal();
  41. }
  42.  
  43. int main(int argc, char *argv[])
  44. {
  45.     QCoreApplication app(argc, argv);
  46.     A a;
  47.     test(a);
  48.     test2(a);
  49.  
  50.     return app.exec();
  51. }
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