30 lines
583 B
Markdown
30 lines
583 B
Markdown
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# Vector3::operator-=
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```cpp
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Vector3& operator-=(const Vector3& other)
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```
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向量减法赋值，从当前向量减去 `other` 的分量。
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**参数：**
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- `other` - 要减的向量
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**返回：** `Vector3&` - 引用到修改后的当前向量
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**线程安全：** ✅
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**复杂度：** O(1)
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**示例：**
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```cpp
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Vector3 v(5.0f, 7.0f, 9.0f);
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v -= Vector3(1.0f, 2.0f, 3.0f); // v = (4.0f, 5.0f, 6.0f)
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```
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## 相关文档
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- [Vector3 类总览](vector3.md) - 返回类总览
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- [`operator-`](operator_sub.md) - 减法运算
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- [`operator+=`](operator_add_assign.md) - 加法赋值
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