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摘要: public static String getRandomStr(){ Random random=new Random(); String randString = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; 阅读全文
posted @ 2018-01-16 14:37 每天都要学一点 阅读(264) 评论(0) 推荐(0)