18 lines
218 B
Markdown
18 lines
218 B
Markdown
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# Vector2::Down
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```cpp
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static Vector2 Down()
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```
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返回下方向向量 (0, -1)。
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**返回：** `Vector2` - 值为 (0, -1) 的向量
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**复杂度：** O(1)
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**示例：**
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```cpp
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Vector2 down = Vector2::Down();
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```
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