清单2展示了一个简短的php指令集，可以提取需要的数据。

Listing 2 shows a short, simplified set of instructions in PHP to extract the data required.

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道路运输行业也渴望增加使用物燃料，欧盟去年的一项指令要求，到2020年要从植物中提取10%的道路运输燃料。

The road transport industry is also keen to increase theuse of biofuels, and an EU directive last year requires 10% of all roadtransport fuel to come from plants by 2020.

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对于方法调用指令，可以使用Bytecode Engineering Library (BCEL)类来提取方法声明抛出的已检查异常的类型。

For the method call instructions, you use Bytecode Engineering Library (BCEL) classes to extract the types of checked exceptions the method is declared to throw.

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