新版本的变更 / Kotlin 1.7
Definitely non-nullable types
An underscore instead of a type argument
Builder inference
min and max are back
Matching at a given position
Opt-in requirement
Deep recursion without a stack overflow
Delegation to the value of a value class
Matching at a given position
此示例属于完整版，可在应用商店购买：
Kotlin Recipes
App Store
Code Recipes
App Store
已经购买？登录您的账户