Listing 22 has fixtures that are defined and used on an individual test case.
在清单22中，在一个测试用例上定义和使用了装备。
In this case, the closure's lifetime will actually be longer than the method that has defined them.
在本例中，闭包的生命周期实际上比定义闭包的方法长。
The script "num" we defined earlier has the type script because it is a function that when executed yields an integer value (in this case the integer 42).
我们早先定义的脚本“num”具有Script类型，这是由于它本身就是一个在执行时会生成一个整数值的函数(在这个例子中，这个整数值是42)。
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