我可以通过[]访问枚举吗？

Question

如何使用[]（如Numbers [“ one”]）访问枚举：

enum Numbers: String {
  case one = "1"
  case two = "2"
  case three =  "3"
}

print(Numbers["one"])

Answer 1

let access_num = Numbers.two
print(access_num.rawValue)
// prints "2"

或

enum Numbers: Int {
 case one = 1, two , three , four
} 

var access_num = Numbers(rawValue: 2)!
print(access_num)

Answer 2

也许您是说rawValue吗？

print(Numbers(rawValue:"1"))

Answer 3

您可以像这样访问其字符串值：

print（Numbers.one.rawValue）。 //输出：-“ 1 / n”