使用对象文字作为TypeScript枚举值

enum Direction {
  Up = "UP",
  Down = "DOWN",
  Left = "LEFT",
  Right = "RIGHT",
}

const selectedDirection: Direction = Direction.Up;
console.log(selectedDirection); // 输出 "UP"

enum Direction {
  Up = "UP",
  Down = "DOWN",
  Left = "LEFT",
  Right = "RIGHT",
}

namespace Direction {
  export function getAlias(direction: Direction): string {
    switch (direction) {
      case Direction.Up:
        return "向上";
      case Direction.Down:
        return "向下";
      case Direction.Left:
        return "向左";
      case Direction.Right:
        return "向右";
      default:
        return "未知方向";
    }
  }
}

const selectedDirection: Direction = Direction.Up;
const alias = Direction.getAlias(selectedDirection);
console.log(alias); // 输出 "向上"