https://blog.youkuaiyun.com/leezenbczh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/leezenbc/article/details/1858961https://blog.youkuaiyun.com/leezenbc/article/details/1858961leezenbcWed, 31 Oct 2007 10:37:00 +0800https://blog.youkuaiyun.com/leezenbc/article/details/1858954https://blog.youkuaiyun.com/leezenbc/article/details/1858954leezenbcWed, 31 Oct 2007 10:32:00 +0800。经过预览功能就可以将图片]]>https://blog.youkuaiyun.com/leezenbc/article/details/1807819https://blog.youkuaiyun.com/leezenbc/article/details/1807819leezenbcSun, 30 Sep 2007 11:53:00 +0800 select ascii(a) a,ascii(a) a,ascii(0) zero,ascii( ) space from dual;a         a      zero     space--------- --------- --------- ---------65   ]]>https://blog.youkuaiyun.com/leezenbc/article/details/1807734https://blog.youkuaiyun.com/leezenbc/article/details/1807734leezenbcSun, 30 Sep 2007 11:16:00 +0800https://blog.youkuaiyun.com/leezenbc/article/details/1807656https://blog.youkuaiyun.com/leezenbc/article/details/1807656leezenbcSun, 30 Sep 2007 10:47:00 +0800https://blog.youkuaiyun.com/leezenbc/article/details/1807437https://blog.youkuaiyun.com/leezenbc/article/details/1807437leezenbcSun, 30 Sep 2007 09:24:00 +0800