---
title: 基本数据类型
description: "```"
url: https://www.hiascend.com/document/detail/zh/Atlas200IDKA2DeveloperKit/latest/Application%20Development%20Guide/aadgc/aclcppdevg_03_1135.html
sourcePath: /source/zh/Atlas200IDKA2DeveloperKit/23.0.RC2/Application Development Guide/aadgc/aclcppdevg_03_1135.html
indexId: 61ac9669bbd7012ee64472b1bb1870816ec57035960f83ae6dc45dd7a2f2a685105
---
# 基本数据类型

```
typedef
hi_s32
hi_audio_dev;
typedef
hi_s32
hi_ai_chn;
typedef
hi_s32
hi_ao_chn;
typedef
hi_s32
hi_aenc_chn;
typedef
hi_s32
hi_adec_chn;
```