根据每个旧选项创建一个新的Option对象，从而将选择列表中的全部选项复制到新array中。

All of the options from the select list are copied to the new Array by creating a new option object from each of the old options.

youdao

根据每个旧选项创建一个新的Option对象，从而将选择列表中的全部选项复制到新array中。

All of the options from the select list are copied to the new Array by creating a new option object from each of the old options.

youdao