In my previous article named “Tags: database schemas” we analysed different database schemas on how they could meet the needs of tag systems. In this article, the focus is on performance (speed). That is: if you want ...
In my previous article named “Tags: database schemas” we analysed different database schemas on how they could meet the needs of tag systems. In this article, the focus is on performance (speed). That is: if you want ...
While setting up the promised performance test in my last post, I did some tests with the MySQL fulltext features and it seems that they are built for tagging systems. Take a look at the queries (if it is not clear fo...
Recently, on del.icio.us mailinglist, I asked the question “Does anyone know the database schema of del.icio.us?”. I got a few private responses so I wanted to share the knowledge with the world. The Problem: You want...
<style type="text/css"> *{ margin:0px; padding:0px; } #wrap{ width:890px; height:124px; position:relative; overflow:hidden; } #wrap ul{ height:108px; position:absolute; top:0px; ...
在chrome中,如果设置了自动完成表单,那么用户在输入了表单并且再次进入到表单页面时,会发现表单下面有一个黄色的背景。例如下面这样: 对于纯色背景的表单,只需要在CSS里面加入类似下面的代码即可: input:-webkit-autofill { ...
$image = imagecreatetruecolor(100, 50); $border_color = imagecolorallocate($image, 0, 0, 0); function drawBorder(&$image, &$border_color, $thickness = 1) { $x1 = 0; $y1 = 0; $x2 = imagesx($image) - 1;...
1. 只能被IE识别 <!--[if IE]> Only recognized in IE; 只能被 IE 识别; <![endif]--> 2. 只能被IE7或其他版本(自己修改版本号)识别 <!--[if IE 7]> Only recognized in IE7; 只能被 IE7 识别; <![endif...
原始代码: Button ok = (Button)findViewById(R.id.ok); ok.setOnClickListener(new OnClickListener(){ public void onClick(View v) { final TextView show = (TextView)findVi...
问题:直接编辑edit text输入文字会报警告 警告代码: <Button android:id="@+id/clock" android:layout_width="wrap_content" android:layout_height="wrap_content&quo...
1. 运行cmd 2. 转到\sdk\platform-tools文件路径下 3. adb kill-server 4. adb start-server
地球是一个近乎标准的椭球体,它的赤道半径为6378.140千米,极半径为6356.755千米,平均半径6371.004千米。如果我们假设地球是一个完美的球体,那么它的半径就是地球的平均半径,记为R。如果以0度经线为基准,那么根据地球表面任意两...
一,前端展示 例1,最简单好用的方式。简单在于不需要$model <?php $this->widget('zii.widgets.jui.CJuiDatePicker',array( 'attribute'=>'visit_time', 'language...
下面对比一些产品的评论模块的设计,包括机制、优点、缺点 网易博客新版博客中心动态 机制:最新评论显示在最前面,可以对任何一条评论和评论回复再评论(回复评论直接“XX回复XX显示),时间信息和回复按钮紧接着评论内容后面,评论...
配置文件中main.php 'db'=>array( ... 'tablePrefix' => 'ecms_', ... ), model中 public function tableName() { return '{{slider}}'; }
============Which method========================Time====== Inline calculation 0.0805 s Normal function call 0.3438 s Normal method called through object ...
图标用于向用户传递信息,不管是在网页还是Web应用程序中都非常需要。这些小小的图标元素能够告诉用户怎么到下一页,如何添加、删除和取消等等各种操作。设计精美的图标不仅能增加界面的美观,也能够让应用程序更加易用。下面收集的13...
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