【案情介绍】2014年12月,王某丢失手提包一个,内有现金若干,手机一部,几张银行卡以及各种证件。由于久未寻回,心急如焚的王某在广播电台及当地报纸上刊出悬赏广告,广告中称:凡归还手提包者,愿付5000元作为报酬。几天后,刘某拾到手提包并还给王某,但在要求王某按悬赏广告的约定支付5000元报酬时遭拒。王某称:当初悬赏广告上5000元的报酬,只是为尽快找回手提包,现在只愿出1000元。刘某 【Case Presentation】 December 2014, Wang lost a handbag, there are a number of cash, a cell phone, a few bank cards and a variety of documents. As a long time no return, distraught Wang in the radio stations and local newspapers published a reward advertisement, advertising said: Those who return the handbag, willing to pay 5,000 yuan as a reward. A few days later, Liu pick up the handbag and returned to Wang, but Wang asked Wang reward payment by remuneration paid 5000 yuan refused. Wang said: The original reward of 5,000 yuan on the remuneration, just to retrieve the handbag as soon as possible, and now only willing to out of 1,000. Ryu