37 lines
933 B
Markdown
37 lines
933 B
Markdown
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# HashMap::operator=
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```cpp
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HashMap& operator=(const HashMap& other);
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HashMap& operator=(HashMap&& other) noexcept;
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```
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赋值运算符，用另一个 HashMap 的内容替换当前内容。
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**参数：**
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- `other` - 源哈希表（拷贝版本为 `const` 引用，移动版本为右值引用）
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**返回：** 对当前对象的引用 (`*this`)
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**复杂度：**
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- 拷贝赋值：O(m_bucketCount + other.m_size)
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- 移动赋值：O(m_size)，需要先清空当前内容
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**示例：**
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```cpp
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XCEngine::Containers::HashMap<int, const char*> map1;
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map1.Insert(1, "one");
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map1.Insert(2, "two");
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XCEngine::Containers::HashMap<int, const char*> map2;
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map2 = map1; // 拷贝赋值
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XCEngine::Containers::HashMap<int, const char*> map3;
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map3 = std::move(map1); // 移动赋值，map1 在此调用后状态不确定
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```
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## 相关文档
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- [HashMap 总览](hashmap.md) - 返回类总览
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- [Copy/Move](copy-move.md) - 拷贝/移动构造
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