2020年8月4日
获取4位包括字母+数字的随机码
摘要： /** * 获取4位包括字母+数字的随机码 * @return */ public static String getRandomValidStr(){ String letters[] = {"A","B","C","D","E","F","G","H","I","J","K","L","M"," 阅读全文
posted @ 2020-08-04 15:03 yshy 阅读(425) 评论(0) 推荐(0)