现在参看搜索函数，这个函数使用一个功能最强大的scala特性：模式匹配。

Now look at the search function. This function USES one of the most powerful features of Scala, its pattern matching.

youdao

现在参看搜索函数，这个函数使用一个功能最强大的scala特性：模式匹配。

Now look at the search function. This function USES one of the most powerful features of Scala, its pattern matching.

youdao