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docs/api/memory/pool-allocator/get-block-size.md

@@ -0,0 +1,31 @@
+# PoolAllocator::GetBlockSize
+
+```cpp
+size_t GetBlockSize() const;
+```
+
+返回内存池中每个内存块的大小。此值在构造时确定，之后保持不变。
+
+**参数：** 无
+
+**返回：** 每个内存块的字节大小
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+#include <XCEngine/Memory/PoolAllocator.h>
+
+PoolAllocator pool(sizeof(int) * 100, 50);
+
+size_t blockSize = pool.GetBlockSize(); // 400 字节
+
+void* block = pool.Allocate();
+int* arr = static_cast<int*>(block);
+// arr 指向的大小为 blockSize 字节的内存块
+```
+
+## 相关文档
+
+- [PoolAllocator 总览](pool-allocator.md) - 返回类总览