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XCSDD/docs/api/containers/hashmap/find.md
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HashMap::Find

Value* Find(const Key& key);
const Value* Find(const Key& key) const;

根据键查找对应的值指针。

参数:

  • key - 要查找的键

返回: 如果找到,返回指向值的指针;否则返回 nullptr

复杂度: O(1) 平均,最坏 O(n)(同一桶中有多个键发生哈希冲突)

示例:

XCEngine::Containers::HashMap<int, const char*> map;
map.Insert(1, "one");
map.Insert(2, "two");

const char* value1 = map.Find(1);
if (value1) {
    std::cout << "Found: " << value1 << std::endl; // 输出 "Found: one"
}

const char* value2 = map.Find(99);
if (!value2) {
    std::cout << "Not found" << std::endl; // 输出 "Not found"
}

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