c++调用了图片，程序编译通过了，运行不了

#include "clockLayer.h"

bool clockLayer::init()
{
Size winSize = Director::getInstance()->getWinSize();//获取窗口大小
MenuItemLabel * menuItem = MenuItemLabel::create(Label::createWithSystemFont
("back","",32),CC_CALLBACK_1(clockLayer::menuCallBack,this));
menuItem->setPosition(Vec2(winSize.width*0.9,winSize.height*0.9));//屏幕右上角
auto menu = Menu::create(menuItem,NULL);
menu->setPosition(Point::ZERO);
this->addChild(menu);

ahour = Sprite::create("resource\shi.png");
ahour->setPosition(Vec2(winSize.width/2,winSize.height/2));
ahour->setScale(0.5);//图片较大，缩放成原来的0.5倍
this->addChild(ahour);

aminute = Sprite::create("resource/fen.jpg");
aminute->setPosition(Vec2(winSize.width/2,winSize.height/2));
aminute->setScale(0.5);//图片较大，缩放成原来的0.5倍
this->addChild(aminute);

asecond = Sprite::create("resource/miao.jpg");
asecond->setPosition(Vec2(winSize.width/2,winSize.height/2));
asecond->setScale(0.5);//图片较大，缩放成原来的0.5倍
this->addChild(asecond);

abackground = Sprite::create("resource\background.jpg");

// abackground = Sprite::createWithSpriteFrame("resource\background.jpg");
// abackground = Sprite::create("Mygame\resource\HelloWorld.png");
abackground->setPosition(Vec2(winSize.width*0.5,winSize.height*0.5));
abackground->setScale(0.5);//图片较大，缩放成原来的0.5倍
this->addChild(abackground,1);

return true;

}

void clockLayer::menuCallBack(Ref *pSender)
{

}
void clockLayer::timeUpdate(float dt)
{

}