In this case you must obtain a new enumerator object because the previous one is invalidated.

这时您必须获取一个新的枚举数对象，因为以前的已无效。

youdao

In this case you must obtain a new enumerator object because the previous one is invalidated.

这时您必须获取一个新的枚举数对象，因为以前的已无效。

youdao