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docs/api/memory/allocator/get-allocation-count.md

@@ -0,0 +1,52 @@
+# IAllocator::GetAllocationCount
+
+```cpp
+virtual size_t GetAllocationCount() const = 0;
+```
+
+返回当前处于已分配状态（未释放）的内存块数量。此方法用于监控活跃分配的数量。
+
+**参数：** 无
+
+**返回：** 当前已分配块的数量
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+#include <XCEngine/Memory/Allocator.h>
+
+class MyAllocator : public IAllocator {
+    size_t m_count = 0;
+public:
+    void* Allocate(size_t size, size_t alignment = 0) override {
+        ++m_count;
+        return ::operator new(size);
+    }
+    
+    void Free(void* ptr) override {
+        if (ptr) {
+            --m_count;
+            ::operator delete(ptr);
+        }
+    }
+    
+    void* Reallocate(void* ptr, size_t newSize) override { /* ... */ }
+    
+    size_t GetTotalAllocated() const override { return 0; }
+    size_t GetTotalFreed() const override { return 0; }
+    size_t GetPeakAllocated() const override { return 0; }
+    size_t GetAllocationCount() const override { return m_count; }
+    const char* GetName() const override { return "MyAllocator"; }
+};
+
+MyAllocator alloc;
+alloc.Allocate(64);
+alloc.Allocate(128);
+size_t count = alloc.GetAllocationCount(); // 返回 2
+```
+
+## 相关文档
+
+- [IAllocator 总览](allocator.md) - 返回类总览