Description: Realize the waveform output, you can run successfully, the output stepped waveform
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File list (Check if you may need any files):
DrawTest\.cproject
........\.project
........\debug\drawtest.o
........\.....\GraphicsView.o
........\.....\main.o
........\.....\moc_drawtest.cpp
........\.....\moc_drawtest.o
........\.....\moc_SahuWaveScene.cpp
........\.....\moc_SahuWaveScene.o
........\.....\SahuWaveScene.o
........\.raw\.cproject
........\....\.project
........\....\DrawTest
........\....\drawtest.cpp
........\....\drawtest.h
........\....\DrawTest.pro
........\....\drawtest.ui
........\....\GraphicsView.cpp
........\....\GraphicsView.h
........\....\main.cpp
........\....\Makefile
........\....\Makefile.Debug
........\....\Makefile.Release
........\....\SahuWaveScene.cpp
........\....\SahuWaveScene.h
........\....\ui_drawtest.h
........\DrawTest
........\drawtest.cpp
........\drawtest.h
........\DrawTest.pro
........\drawtest.ui
........\GraphicsView.cpp
........\GraphicsView.h
........\main.cpp
........\Makefile
........\Makefile.Debug
........\Makefile.Release
........\SahuWaveScene.cpp
........\SahuWaveScene.h
........\ui_drawtest.h
........\debug
........\draw
........\release
DrawTest