摘要: char ToUpper(char c){ return (ch >= 'a' && ch <= 'z') ? (ch - 'a' + 'A') : ch;}char ToLower(char c){ return (ch >= 'A' && ch <= 'Z') ? (ch - 'A' + 'a' 阅读全文
posted @ 2021-09-11 14:26 hbg-rohens 阅读(31) 评论(0) 推荐(0) 编辑