#鸿蒙通关秘籍#如何在鸿蒙中使用KvManager关闭和删除键值库

在鸿蒙系统中，通过 KvManager 可以关闭和删除指定的键值库，使用以下步骤即可实现：

关闭键值数据库

typescript try { kvStore = undefined; kvManager.closeKVStore('appId', 'storeId', (err: BusinessError)=> { if (err) { console.error(Failed to close KVStore.code is ${err.code},message is ${err.message}); return; } console.info('Succeeded in closing KVStore'); }); } catch (e) { let error = e as BusinessError; console.error(An unexpected error occurred. Code:${error.code},message:${error.message}); }

删除键值数据库

typescript try { kvStore = undefined; kvManager.deleteKVStore('appId', 'storeId', (err: BusinessError)=> { if (err) { console.error(Failed to close KVStore.code is ${err.code},message is ${err.message}); return; } console.info('Succeeded in closing KVStore'); }); } catch (e) { let error = e as BusinessError; console.error(An unexpected error occurred. Code:${error.code},message:${error.message}); }

使用 closeKVStore 方法可以关闭数据库，而 deleteKVStore 可以删除数据库，通过在 kvManager 实例上调用相应方法即可完成这些操作。