The sample code illustrates how you can create an external grammar file, validate the spoken name, and fetch the records that match.
示例代码将展示如何创建一个外部的语法文件、如何确认所说的名称，以及如何取得匹配的记录。
2
There are lots of systems that follow this pattern, where you write some modules / components in source code then describe how they are connected using an external config file.
Listing 3 provides an example of an embedded style declaration that really should be held within an external CSS file for greater code maintainability.