23 lines
376 B
Markdown
23 lines
376 B
Markdown
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# Rect::SetPosition (float)
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```cpp
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void SetPosition(float newX, float newY)
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```
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设置矩形位置（保持尺寸不变）。
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**参数：**
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- `newX` - 新的左边界
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- `newY` - 新的上边界
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**返回：** `void`
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**复杂度：** O(1)
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**示例：**
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```cpp
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Rect rect(0.0f, 0.0f, 100.0f, 50.0f);
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rect.SetPosition(50.0f, 30.0f); // rect 现在为 (50, 30, 100, 50)
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```
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