fix typo

Signed-off-by: NEight_J <1964686931@qq.com>

en/application-dev/connectivity/ipc-rpc-development-guideline.md

@@ -133,13 +133,13 @@ IPC/RPC enables a proxy and a stub that run on different processes to communicat
     ```
     // Register the TestAbilityStub instance with the SystemAbilityManager on the same device as the SA.
     auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-    samgr->AddSystemAbility(said, new TestAbility());
+    samgr->AddSystemAbility(saId, new TestAbility());
     
     // Register the TestAbilityStub instance with the SystemAbilityManager on a different device.
     auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
     ISystemAbilityManager::SAExtraProp saExtra;
     saExtra.isDistributed = true; // Set a distributed SA.
-    int result = samgr->AddSystemAbility(said, new TestAbility(), saExtra);
+    int result = samgr->AddSystemAbility(saId, new TestAbility(), saExtra);
     ```
 
 6.  Obtain the SA.
@@ -149,12 +149,12 @@ IPC/RPC enables a proxy and a stub that run on different processes to communicat
     ```
     // Obtain the proxy of the SA registered on the local device.
     sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(said);
+    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(saId);
     sptr<ITestAbility> testAbility = iface_cast<ITestAbility>(remoteObject); // Use the iface_cast macro to convert the proxy to a specific type.
     
     // Obtain the proxies of the SAs registered with other devices.
     sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(sdid, deviceId); // deviceId identifies a device.
+    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(saId, deviceId); // deviceId identifies a device.
     sptr<TestAbilityProxy> proxy(new TestAbilityProxy(remoteObject)); // Construct a proxy.
     ```
 

zh-cn/application-dev/connectivity/ipc-rpc-development-guideline.md

@@ -104,13 +104,13 @@ IPC/RPC的主要工作是让运行在不同进程的Proxy和Stub互相通信，
    ```
    // 注册到本设备内
    auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-   samgr->AddSystemAbility(said, new TestAbility());
+   samgr->AddSystemAbility(saId, new TestAbility());
    
    // 在组网场景下，会被同步到其他设备上
    auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
    ISystemAbilityManager::SAExtraProp saExtra;
    saExtra.isDistributed = true; // 设置为分布式SA
-   int result = samgr->AddSystemAbility(said, new TestAbility(), saExtra);
+   int result = samgr->AddSystemAbility(saId, new TestAbility(), saExtra);
    ```
 
 6. SA 获取与调用
@@ -119,12 +119,12 @@ IPC/RPC的主要工作是让运行在不同进程的Proxy和Stub互相通信，
    ```
    // 获取本设备内注册的SA的proxy
    sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-   sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(said);
+   sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(saId);
    sptr<ITestAbility> testAbility = iface_cast<ITestAbility>(remoteObject); // 使用iface_cast宏转换成具体类型
    
    // 获取其他设备注册的SA的Proxy
    sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-   sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(sdid, deviceId); // deviceId是指定设备的标识符
+   sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(saId, deviceId); // deviceId是指定设备的标识符
    sptr<TestAbilityProxy> proxy(new TestAbilityProxy(remoteObject)); // 直接构造具体Proxy
    ```