https://blog.youkuaiyun.com/atd_nianzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/atd_nian/article/details/5650866https://blog.youkuaiyun.com/atd_nian/article/details/5650866atd_nianSun, 06 Jun 2010 13:22:00 +0800在extJS的例子中，大部分都在程序第一行使用了如下语句：
Ext.QuickTips.init();
但是QuickTips的用处是什么呢？
我们通过一个例子来看（可能是代码与Wordpress兼容的问题，只能在Opera和Safari上看到例子的样子，在firefox和IE上都无法显示这个例子，我感到比较奇怪。）
大家把鼠标移到上面的Link和旁边的输入框上方，可以看到在鼠标旁边显示出了提示语。（如果你无法看到效果，很有可能是因为你无法访问国外网站，请]]>https://blog.youkuaiyun.com/atd_nian/article/details/5124491https://blog.youkuaiyun.com/atd_nian/article/details/5124491atd_nianSun, 03 Jan 2010 15:00:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/5117582https://blog.youkuaiyun.com/atd_nian/article/details/5117582atd_nianFri, 01 Jan 2010 16:16:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/5083176https://blog.youkuaiyun.com/atd_nian/article/details/5083176atd_nianSat, 26 Dec 2009 21:49:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4946022https://blog.youkuaiyun.com/atd_nian/article/details/4946022atd_nianSat, 05 Dec 2009 13:33:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4450811https://blog.youkuaiyun.com/atd_nian/article/details/4450811atd_nianSun, 16 Aug 2009 00:33:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4440205https://blog.youkuaiyun.com/atd_nian/article/details/4440205atd_nianWed, 12 Aug 2009 22:29:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4429012https://blog.youkuaiyun.com/atd_nian/article/details/4429012atd_nianSun, 09 Aug 2009 22:50:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4428528https://blog.youkuaiyun.com/atd_nian/article/details/4428528atd_nianSun, 09 Aug 2009 19:57:00 +0800标签就可以了。  ueryTask id="queryTask" url="http://sampleserver1.arcgisonlin]]>https://blog.youkuaiyun.com/atd_nian/article/details/4428312https://blog.youkuaiyun.com/atd_nian/article/details/4428312atd_nianSun, 09 Aug 2009 18:33:00 +0800标签来完成创建工作，如下面的代码raw id="drawToolbar" map="{myMap}" graphicsLayer="{myGr]]>https://blog.youkuaiyun.com/atd_nian/article/details/4428046https://blog.youkuaiyun.com/atd_nian/article/details/4428046atd_nianSun, 09 Aug 2009 16:04:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4427994https://blog.youkuaiyun.com/atd_nian/article/details/4427994atd_nianSun, 09 Aug 2009 15:37:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/4427988https://blog.youkuaiyun.com/atd_nian/article/details/4427988atd_nianSun, 09 Aug 2009 15:34:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917970https://blog.youkuaiyun.com/atd_nian/article/details/3917970atd_nianSat, 21 Feb 2009 16:40:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917964https://blog.youkuaiyun.com/atd_nian/article/details/3917964atd_nianSat, 21 Feb 2009 16:39:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917963https://blog.youkuaiyun.com/atd_nian/article/details/3917963atd_nianSat, 21 Feb 2009 16:38:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917959https://blog.youkuaiyun.com/atd_nian/article/details/3917959atd_nianSat, 21 Feb 2009 16:38:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917947https://blog.youkuaiyun.com/atd_nian/article/details/3917947atd_nianSat, 21 Feb 2009 16:35:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917940https://blog.youkuaiyun.com/atd_nian/article/details/3917940atd_nianSat, 21 Feb 2009 16:34:00 +0800https://blog.youkuaiyun.com/atd_nian/article/details/3917931https://blog.youkuaiyun.com/atd_nian/article/details/3917931atd_nianSat, 21 Feb 2009 16:32:00 +0800y,x->z},则R为BCNF  鲍依斯-科得范式（BCNF）：在第三范式的基础上，数据库表中如果不存在任何字段对任一候选关键字段的传递函数依赖则符合第三范式。 由x->y,x->z可知，x是唯一关键字，不可能有部分函数依赖，因此是2NF. 由于不存在y->z或z->y这样的传递函数依赖，因此是3NF. 由于x是唯一关键字，不存在关键]]>