摘要: fun String.lettersCount(): Int { var count = 0 for (char in this) { if (char.isLetter()) { count++ } } return count } fun main() { val count="hwasdhas 阅读全文
posted @ 2021-10-29 19:47 木子欢儿 阅读(54) 评论(0) 推荐(0) 编辑