『看夜晚直(zhi)播(bo)的好軟件』介(jie)紹(shao):唐(tang)僧(seng)(seng)師(shi)徒四(si)人前去西(xi)天(tian)取經,途經荒山野嶺,巧遇一(yi)(yi)位(wei)破衣爛衫和尚(shang),要(yao)他們師(shi)徒捎帶(dai)一(yi)(yi)些(xie)羊皮背囊交(jiao)與如(ru)來(lai)佛祖。此背囊所裝(zhuang)之(zhi)物(wu),謂“有(you)(you)即是(shi)無(wu),無(wu)即是(shi)有(you)(you)",只(zhi)要(yao)你心(xin)中(zhong)想要(yao)什(shen)(shen)么,就會有(you)(you)什(shen)(shen)么,實為一(yi)(yi)件非常神奇的法寶。但和尚(shang)要(yao)唐(tang)僧(seng)(seng)師(shi)徒下以誠信保證,就是(shi)在把(ba)背囊交(jiao)給如(ru)來(lai)佛祖之(zhi)前,無(wu)論遇到什(shen)(shen)么,都不(bu)許打(da)開(kai),更不(bu)能(neng)盜用(yong)(yong)囊中(zhong)之(zhi)物(wu)。唐(tang)僧(seng)(seng)師(shi)徒一(yi)(yi)口應承。臨走前,和尚(shang)把(ba)用(yong)(yong)來(lai)打(da)開(kai)背囊的口訣分三句分別告訴(su)孫悟(wu)空、豬(zhu)八戒和沙和尚(shang)。師(shi)徒一(yi)(yi)行重又上路。小(xiao)牛(niu)王(wang)得知此事,對背囊垂涎欲滴(di),召集天(tian)神天(tian)將后(hou)代,執意占為已(yi)有(you)(you)。小(xiao)牛(niu)王(wang)乃牛(niu)魔王(wang)和鐵(tie)扇公(gong)主的嬌(jiao)養(yang)獨子……