数字与字母 随机数小demo
摘要：
public String generateRandomId(){ String chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ"; StringBuffer buffer = new StringBuffer(); for (int i = 0; i ... 阅读全文
posted @ 2016-04-01 11:21 Crazy_snail 阅读(170) 评论(0) 推荐(0) 编辑