03 2020 档案

摘要:/** * byte(字节)根据长度转成kb(千字节)和mb(兆字节) * * @param bytes * @return */ public static String bytes2kb(long bytes) { BigDecimal filesize = new BigDecimal(byt 阅读全文
posted @ 2020-03-13 14:10 790021521 阅读(1783) 评论(0) 推荐(0) 编辑
摘要:格式为: order by field(value,str1,str2,str3,str4,strn) 示例: select * from user by field(name,‘zhangsan’,‘lisi’,‘wangwu’); 阅读全文
posted @ 2020-03-06 10:35 790021521 阅读(136) 评论(0) 推荐(0) 编辑