button=dynamic_cast<Button*>(node->getChildByName(“Button_1”));
button->addTouchEventListener(CC_CALLBACK_2(PropsSynthesis::addPropsSynthesis, this));
崩溃提示
this cocos2d::ui::Widget * NULL 0x0000000000000000
callback const ccWidgetTouchCallback & 0x00007fff5c3daf70 0x00007fff5c3daf70