版本：1.5.0-RC
- https://cdn.bootcdn.net/ajax/libs/kotlin/1.5.0-RC/kotlin.js
- https://cdn.bootcdn.net/ajax/libs/kotlin/1.5.0-RC/kotlin.meta.js
- https://cdn.bootcdn.net/ajax/libs/kotlin/1.5.0-RC/kotlin.meta.min.js
- https://cdn.bootcdn.net/ajax/libs/kotlin/1.5.0-RC/kotlin.min.js