)
After derivative: F = - nA / (r^(n+1)) + nB / (r^(m+1))
A, B can be the strength of gravity and repulsion, respectively, N, M represents the attenuation of these two forces
Application: Chase/Flash dodge obstacles in droves
Path Search
Basic path Search (slightly)
Random movement to avoid obstacles: advantages
Bypass Obstacle: Segment Detour, Sight detour
Breadcrumbs (breadcr
root directory to find forum.php files, search: Define (' Curscript ', ' Forum '); The next line is inserted: $_get +=array (' mod ' => ' forumdisplay ', ' fid ' =>6); PS: ' FID ' =>6 in the "6" representative plate of the FID. For example: To achieve a single version of the Forum address: forum.php?mod=forumdisplayfid=44, then: the previous sentence of "6" to "44" can be. Extended knowledge: Modify Discuz Home First, set the forum.php as the default home page for the site and set it to the firs
HTML link attributes: itemOptions: array. optional. Additional HTML attributes of menu items are displayed. SubmenuOptions: array (optional) HTML attribute of the sub-Menu. you can define the Menu in the Layout layout. for example, in this example, modify protected/views/Layout/main. php.
Widget ('zii. widgets. CMenu ', array ('items' => array ('label' => 'home', 'URL' => array ('/site/index ')), array ('label' => 'about', 'URL' => array ('/site/page', 'View' => 'about ')), array ('label' => 'C
Is the request an array represented as breadcrumb? I have such an array, PHPcode $ a = array ('Category '= gt; array ('name' = gt; quot; Level 1 quot ;), is the request an array represented as breadcrumb?
I have such an array,
PHP code
$ A = array ('Category '=> array ('name' => "level 1 "), 'Children '=> array ('Category' => array ('name' => "level 2 "), 'Children '=> array ('Category' => array ('name' => "level 3 ")))))));
Maybe there is an array ('name' => "level 3") under array
properties to allow different views to share data.
For example, in the About view, you can use the following code to specify the current portion of the current breadcrumbs.
$this->params[' breadcrumbs ' [] = ' about Us ';
In a layout file (also a view), you can generate a display breadcrumbs by using the values added to Yii\base\view::p arams Arra
selection.
In Chrome and Safari, you can $1 - $4 choose a more forward element.
In Firebug, you can $n(2) - $n(5) choose a more anterior element.
Final evaluation Expression
If you need the result of the previous expression to be used for the subsequent evaluation, you can use $_ the convenience and the final expression result will be automatically displayed to you.
Firebug 1.12 began to support.
Check
Navigating the DOM through breadcrumbs
Wh
Article Introduction: compatible with multiple-browser breadcrumbs.
Breadcrumbs are a common component of the Web, earlier in the "CSS3 production breadcrumbs" and case "css3 bread crumbs Design " using CSS3 made a variety of bread crumbs effect, Today, using the original CSS with a certain label produced a compatible multi-browser bread crumbs case,
three levels of menu navigation: Home, catalog page, product page, some sites may be to highlight important keywords will also set up additional navigation page, this is also possible, but to keep your site simpler and better, Do not unnecessarily complicate the menu. In this process, be sure to pay attention to the Web site breadcrumbs navigation settings, e-commerce website content information more, the site function is also more complex, if there
optimization.
1. Website Navigation Column Optimization
Website navigation column optimization includes site navigation, bottom navigation, breadcrumbs three parts navigation, in the site navigation settings usually we will try to use the target keyword long tail keyword to name, as far as possible to avoid the occurrence of the column between the keyword intersection phenomenon; navigation as far as possible in the important position, According to
page of the site on the long tail word ranking is also better Of course, this is a good place to control the density and placement of this keyword.
3. Web content of the professional (can do some pure technical documents)
Proper addition of key notes and original articles, such as technical documents, technical parameters, product descriptions, etc., is very helpful for the weight of the internal pages.
4, increase the internal links of the page:
(1) The first page of the most important, an
structure of the website is involved in the site optimization, this is believed that Baidu search will be able to appear a large number of boutique articles, streamlined web site structure for spiders to provide convenient crawling. Site structure optimization includes: url static, breadcrumbs navigation, site map, web code weight loss and so on. Here alone to emphasize the static web site and breadcrumbs
with the site's URL uniformity. While realizing that static URLs are more leveraged with SEO, the details are not well grasped. So this is a bit of a place where we can improve. Uniform standardization of URLs.
Alt tag and title tag of the picture
The alt tag of the picture, now the optimized person will mention the problem, so this one can understand. But there is also a title tag that many people can easily overlook. First of all, this title tag is only intended to enhance the density of ke
that the title is not good, modified, after the change feeling is not good, and repeated changes, in fact, this impact on the site is still very large, like a recent web site International Wine Investment Network 5199.tv, on the modification of the title led to the fall, ranking decline, but the current constantly updated original articles, high-quality Web site outside the chain, the site will slowly be better.
2, bread crumbs Navigation
Now a lot of web sites are taking
variable name, then use ALT + Shift + R, at which time eclipse will prompt you to enter a new variable name, click Enter to modify the success. This shortcut key also applies to modifying the class name and method name.
Extracting class methodsIf the code for a method is too long and you want to extract the sub-method, simply select a block of code and then use ALT + Shift + M to eject the view and enter the method name.
14th strokes Eclipse's breadcrumb function ALT + Shift + BEclipse
This article introduces a simple introductory tutorial for node.js under Windows System, Node.js is a JavaScript framework for back-end programming, and friends can refer to the following
With recent PayPal and Netflix announcements migrating to Node.js, the server-side JavaScript platform has proven its own value in the Enterprise domain. This is a small step for node, but a big leap for JavaScript! Programmers from. NET, Java, PHP, Ruby on rails, and more technology, all of the coders on the
Objective
With recent PayPal and Netflix announcements migrating to Node.js, the server-side JavaScript platform has proven its own value in the Enterprise domain. This is a small step for node, but a big leap for JavaScript! Programmers from. NET, Java, PHP, Ruby on rails, and more technology, all of the coders on the server side converge on this platform. As big players like Yahoo, Walmart, and Oracle, Node is losing its reputation for being immatu
. the default value is 3. the parameter $ margin indicates the gap between blank areas in the border around the QR code;The parameter $ saveandprint indicates whether to save the QR code and display it.
2. put the decompressed phpqrcode folder under the extensions folder, for example:
3. introduce phpqrcode
Yii::$enableIncludePath = false;Yii::import ('application.extensions.phpqrcode.phpqrcode', 1 );
The following describes how to generate a complete QR code.
Public function actionQrcode () {$
code. Of course, you must enable GD2 in your PHP environment.Phpqrcode. php provides a key png () method.The $ text parameter indicates generating two pieces of information text;The parameter $ outfile indicates whether to output the QR code image file. The default value is no;The $ level parameter indicates the coverage rate, that is, the covered areas can also be identified, namely, L (QR_ECLEVEL_L, 7%), M (QR_ECLEVEL_M, 15%), Q (QR_ECLEVEL_Q, 25% ), H (QR_ECLEVEL_H, 30% );The parameter $ siz
At the beginning of the function, it was found that a "breadcrumbs" navigation feature was interspersed across all the pages. This seemingly insignificant little feature had not been noticed before, and now decided to implement itSo-called breadcrumbs, which are page-level navigation, such asHome >> My Blog >> essaysThe structure was observed and analyzed as follows:1. Structure must be a parent-child struc
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