[Kotlin 的變量、函數和類型](Kotlin%E7%9A%84%E5%8F%98%E9%87%8F%E3%80%81%E5%87%BD%E6%95%B0%E5%92%8C%E7%B1%BB%E5%9E%8B.md) [Kotlin 里那些「不是那么寫的」](Kotlin%E9%87%8C%E9%82%A3%E4%BA%9B%E3%80%8C%E4%B8%8D%E6%98%AF%E9%82%A3%E4%B9%88%E5%86%99%E7%9A%84%E3%80%8D.md) [Kotlin 里那些「更方便的」](Kotlin%E9%87%8C%E9%82%A3%E4%BA%9B%E3%80%8C%E6%9B%B4%E6%96%B9%E4%BE%BF%E7%9A%84%E3%80%8D.md)