defines an option group meaning in English
选项组
Examples
- Defines an option group . this element allows you to group choices . when you have a long list of options , groups of related choices are easier to handle
定义一个选项组。该元素可以使你选择某个选项组中所对应的选项。如果你的选项列表太长，使用这个方法可以标出具体选项所对应的选项组，从而方便你进行相关选项的选择。