在手机端添加导出世界按钮！Add the Export World button on the phone!

我认为在手机上导出世界也是必要的，特别是对于一些惯用手机的人来说，有时如果想要将存档转移到其它设备上，或者是分享一下存档，结果由于种种原因失败甚至因为不当的尝试丢失存档，最终落得一场空，对于一个在手机上有大型且非常重要的存档的玩家来说简直是一个天大的打击！ I think it's also necessary to export the world on your phone, especially for some people who are used to mobile phones, sometimes if you want to transfer your save to another device, or share it, it will fail for various reasons or even lose it due to improper attempts, and end up empty, which is a big blow for a player who has a large and very important save on his phone! *Use Microsoft Translater*