本课内容目前为英文。
Decisions that return values
A badge for every level, a message for every rank. In Kotlin, if and when do not just run code, they produce values, so your decisions read like definitions.
本课内容目前为英文。
A badge for every level, a message for every rank. In Kotlin, if and when do not just run code, they produce values, so your decisions read like definitions.