The basics of dojo_dojo-JS Tutorial-php.cn

The basics of dojo_dojo

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Release： 2016-05-16 19:16:22

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Assume that our project directory is as follows:

<pre class="brush:php;toolbar:false">   -- HelloWorld.html<br><br>  |-- js/<br><br>     -- dojo/  /*此处是dojo包下面的文件,列表如下<br><pre class="brush:php;toolbar:false">       		 -- build.txt<br>       		 -- CHANGELOG<br>      		 -- demos<br><br>         		  -- ..<br>       		 -- dojo.js<br>       		 -- dojo.js.uncompressed.js<br>       		 -- iframe_history.html<br>       		 -- LICENSE<br>       		 -- README<br>       		 -- src/<br><br>

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Now we create the HelloWorld.html file with the following code:

<pre class="brush:php;toolbar:false"><html><br> <head><br>  <title>Dojo: Hello World!</title><br><br>  <!-- SECTION 1 --><br>  <script type="text/javascript" src="js/dojo/dojo.js"></script><br><br>  <!-- SECTION 2 --> <br> </head><br><br> <body><br> </body><br></html>

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Add a widget button to the body

<pre class="brush:php;toolbar:false"><button dojoType="Button" widgetId="helloButton">Hello World!</button><br><br>上面不一定要使用widgetId，用平常的id就行了，widget会自己将其转化为widgetId。<br>

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Start adding the code for section 2 below.

<pre class="brush:php;toolbar:false">  <!-- SECTION 2 --><br>  <script type="text/javascript"><br><br>   //引入库<br>   //event.*是处理事件，比如：点击，的所有包。<br>   dojo.require("dojo.event.*");<br>   dojo.require("dojo.widget.*");<br>   dojo.require("dojo.widget.Button");<br><br>   //点击按钮后调用的函数<br>   function helloPressed()<br>   {<br>    alert('You pressed the button');<br>   }<br><br>   //将helloButton的点击事件绑定到helloPressed()函数<br>   function init()<br>   {<br>    var helloButton = dojo.widget.byId('helloButton');//获得button对象<br>    dojo.event.connect(helloButton, 'onClick', 'helloPressed')//绑定,这只是其中一种绑定方法<br>   }<br><br>   dojo.addOnLoad(init);//当然也可以将init函数命为其它的名<br>  </script><br>

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<pre class="brush:php;toolbar:false">这样,就完成了HelloWorld.html的代码. 试试吧.<br><br>另外,要注意的是:<br>如果init函数已经运行了,我们再使用<code>document.getElementById</code> 就没用了. 因为DOM<br>已经被widget改变. 只能用dojo.widget.byId.<br>

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