清单7定义一个序列名，然后使用一个for子句遍历该序列，获取每个名称并将其添加到节点集合中。

Listing 7 defines a sequence of names, and then USES a for clause to loop through this sequence, retrieving each name and adding it to a node collection.

youdao

清单7定义一个序列名，然后使用一个for子句遍历该序列，获取每个名称并将其添加到节点集合中。

Listing 7 defines a sequence of names, and then USES a for clause to loop through this sequence, retrieving each name and adding it to a node collection.

youdao