Banter is ostensibly against politeness principle,but actually it presents polite communicative intention by impolite utterances,aiming to boost interpersonal harmony.

• 玩笑话语从字面上看似乎与礼貌原则背道而驰,但实际上它是用不礼貌的言辞表达礼貌的交际意图,目的也是为了促进互动过程中的和谐关系。