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docs/api/memory/manager/get.md

@@ -0,0 +1,39 @@
+# MemoryManager::Get
+
+```cpp
+static MemoryManager& Get();
+```
+
+获取 MemoryManager 单例实例。如果尚未创建则内部构造。此方法是获取内存管理器实例的唯一途径。
+
+**参数：** 无
+
+**返回：** MemoryManager 单例引用
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+#include <XCEngine/Memory/MemoryManager.h>
+
+// 获取单例
+MemoryManager& manager = MemoryManager::Get();
+
+// 初始化
+manager.Initialize();
+
+// 访问系统分配器
+IAllocator* sysAlloc = manager.GetSystemAllocator();
+
+// 关闭
+manager.Shutdown();
+
+// 多次调用返回同一实例
+MemoryManager& manager2 = MemoryManager::Get();
+// manager == manager2 为 true
+```
+
+## 相关文档
+
+- [MemoryManager 总览](manager.md) - 返回类总览