提示：点击例句中的单词，就可以看到词义解释

Leave the JSF expression { param . empno } as the primary key value .

使用JSF表达式（param.empno）作为主关键字的值。

The classes param is a comma-separated list of all classes that are annotated with DWR annotations .

classes参数是一个以逗号分隔的列表，它由带有DWR注释的所有类组成。

Here , param is a pointer to a structure representing scheduling priority .

在此，param是指向描述调度优先级结构体的指针。

The parameter target_thread indicates the thread whose priority is to be changed ; param indicates the priority .

参数target_thread告知线程要修改谁的优先级；param指定了优先级。

Suppose the doSomething () method wants to make a defensive copy of the param argument on entry ?

假设doSomething（）方法希望复制输入的param参数，会怎么样呢？