变量mynation从列表{"china", "US", "UK"}中随机取值 String[] nation = new String[]{"china", "US", "UK"}; Random random = new Random(); int i = random.nextInt(nation.length); vars.put("mynation",nat…
从指定日期中获取部分数据: 如月份: select to_CHAR(sysdate,'MM') FROM DUAL; 或者: select extract(month from sysdate) from dual; 又或者最笨的方法.用to_char()先把日期转化为指定格式的字符串,在通过substr()这个取到想要的数据. select substr(to_char(sysdate,'yyyy-mm-dd'),6,2) from dual; 获取日期其他部分数据和上方法一样.…
转自:http://www.maomao365.com/?p=6410 摘要: 下文主要分享从指定字符串或列中获取数字信息,如下所示: 实验环境:sql server 2000 ----编写sql函数 )) ) as begin begin , ''); end; return @tmp; end go ----测试sql函数 SELECT dbo.getShuZi('猫猫小屋maomao365.com-sql教程专用网站') go drop function dbo.getShuZi go…
bicycles = ['trek','cannondale','redline','specialized'] message = "My first bicycle was a " + bicycles[0].title() + "." print(message) 输出为: My first bicycle was a Trek.…