解放前,南京有家鹤鸣鞋店,牌子虽老,却无人问津。老板发现许多商店和名牌店都登广告推销商品。他也想做广告宣传一下。但怎样的广告才有效果呢?店老板来回走动寻思着。这时,账房先生过来献计说:“商业竞争与打仗一样,只要你舍得花钱在市里最大的报社登三天的广告。第一大只登个大问号,下面写一行小字:‘欲知详情,请见明日本报栏。’第二天照旧,等到第二天揭开谜底,广告上写‘三人行必有我师,三人行必有我鞋,鹤鸣皮鞋’。” Before the liberation, there was a Heming shoe store in Nanjing. Although the brand was old, nobody cares. The owner discovered that many stores and brand stores advertised and promoted goods. He also wants to advertise. But what kind of advertising is effective? The shop owner walks around and wonders. At this time, the accountant came up and said: “The commercial competition is the same as fighting, as long as you are willing to spend money on the biggest newspaper in the city for three days of advertising. The first big question is only a big question mark. Here’s a small one: For details, please see the Japan Newspaper column. ’The second day is still the same. When the answer is revealed the next day, the advertisement says ’Three lines must have my teacher, three lines must have my shoes, Heming shoes’.”