摘要: 数学函数 1.绝对值 S:select abs(-1) value O:select abs(-1) value from dual 2.取整(大) S:select ceiling(-1.001) value O:select ceil(-1.001) value from dual ... 阅读全文
posted @ 2015-12-30 13:40 rick_i 阅读(285) 评论(0) 推荐(0)
摘要: text/html;charset=UTF-8 阅读全文
posted @ 2015-12-29 16:23 rick_i 阅读(3241) 评论(0) 推荐(0)
摘要: public class Hello { public static void main(String[] args) { int a = 1000, b = 1000; System.out.println(a == b); Integer c = 1000, d ... 阅读全文
posted @ 2015-12-28 17:08 rick_i 阅读(140) 评论(0) 推荐(0)