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# Mastra.listMemory()

`.listMemory()` 方法返回 Mastra 实例中注册的所有 Memory 实例。

## 使用示例

```typescript
const memoryInstances = mastra.listMemory()

for (const [key, memory] of Object.entries(memoryInstances)) {
  console.log(`Memory "${key}": ${memory.id}`)
}
```

## 参数

此方法不接受任何参数。

## 返回值

**memory** (`Record<string, MastraMemory>`): 包含所有已注册 Memory 实例的对象，以其注册键作为键。

## 示例：检查已注册的 Memory

```typescript
import { Mastra } from '@mastra/core'
import { Memory } from '@mastra/memory'
import { LibSQLStore } from '@mastra/libsql'

const conversationMemory = new Memory({
  id: 'conversation-memory',
  storage: new LibSQLStore({ id: 'conversation-store', url: ':memory:' }),
})

const analyticsMemory = new Memory({
  id: 'analytics-memory',
  storage: new LibSQLStore({ id: 'analytics-store', url: ':memory:' }),
})

const mastra = new Mastra({
  memory: {
    conversationMemory,
    analyticsMemory,
  },
})

// List all registered memory instances
const allMemory = mastra.listMemory()
console.log(Object.keys(allMemory)) // ["conversationMemory", "analyticsMemory"]
```

## 相关内容

- [Mastra.getMemory()](https://mastra.zisheng.pro/reference/core/getMemory)
- [Memory 概览](https://mastra.zisheng.pro/docs/memory/overview)