给出以下枚举:
enum Audience { case Public case Friends case Private }
如何从观众常数下面得到字符串“公共”?
let audience = Audience.Public
不知道在哪个Swift版本中添加了这个功能,但现在(Swift 2.1),你只需要这个代码:
enum Audience: String { case Public case Friends case Private } let audience = Audience.Public.rawValue // "Public"
When strings are used for raw values,the implicit value for each case
is the text of that case’s name.[…]
06001
In the example above,CompassPoint.South has an implicit raw value of
“South”,and so on.You access the raw value of an enumeration case with its rawValue
property:06002
07000
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。