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20 lines
399 B
20 lines
399 B
// 定义一组枚举命名常量：enum + 名字 {命名常量}
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/* enum Direction {
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// 枚举成员是有值得，默认从 0 开始自增的数值
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Up,
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Down,
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Left,
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Right
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} */
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enum Direction {
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// 可以给枚举中的成员初始化值
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Up = 2,
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Down = 4,
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Left = 8,
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Right = 16
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}
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function changeDirection(direction: Direction) {}
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changeDirection(Direction.Up)
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