swift3 生成UUID

swift3 生成UUID

//获取UUID
func getUUID() -> String {
    let uuidRef = CFUUIDCreate(nil)
    let uuidStringRef = CFUUIDCreateString(nil,uuidRef)
    return uuidStringRef! as String
}

结果为如下格式：

F4709DFF-24CD-458F-AECB-C0082B87052A

8A860517-F2FA-4B33-B19E-580749DCAC73

32位长度uuid。