scheduleOnce

//程序开始后延时2秒才开始addSprite函数
scheduleOnce(schedule_selector(Issue1305::addSprite), );
转到定义：
void CCNode::scheduleOnce(SEL_SCHEDULE selector, float delay)
{
    this->schedule(selector, 0.0f, , delay);
}

void Issue1305::addSprite(float dt)
{
    m_pSpriteTmp->setPosition(ccp(,));
    addChild(m_pSpriteTmp);
}