不需要在代码中添加块，应该使用配置XML文件来完成.

There's no need to add the block in code, it should be done using config XML files.

为您的模块创建XML配置(有关此主题的大量教程).

Create an XML config for your module (plenty of tutorials on this).

检查catalog.xml(应用/设计/前端/基本/默认/布局/)

check catalog.xml (app/design/frontend/base/default/layout/)

<catalog_product_view translate="label">
 ....
</catalog_product_view>

在此处设置块以在产品视图页面上显示.您可以使用自己的模块XML文件对此进行修改，如下所示:

This is where the blocks are setup for display on the product view page. You can modify this using your own modules XML file, something like this:

<catalog_product_view translate="label">
    <reference name="content">
        <block type="compatiblewith/compatible" name="my.block" template="compatiblewith/compatible/template.phtml" />
    </reference>
</catalog_product_view>

这将在内容区域内的产品视图页面上显示您的自定义块.

this will show your custom block on the product view page, inside the content area.

如果将其命名为Compatible.php，您的块命名也将出错，该类应为SmartGrowth_CompatibleWith_Block_Compatible