通过比较清单2和清单3，可以看出处理程序处理了很多基本代码(比如循环和传递参数)，以便实现深度优先的搜索。

As you can see if you compare Listings 2 and 3, the processor takes care of much of the basic coding (such as looping and passing parameters) to implement a depth-first search.

youdao

通过比较清单2和清单3，可以看出处理程序处理了很多基本代码(比如循环和传递参数)，以便实现深度优先的搜索。

As you can see if you compare Listings 2 and 3, the processor takes care of much of the basic coding (such as looping and passing parameters) to implement a depth-first search.

youdao