HarmonyOS 获取版本号

可通过如下接口获取版本号，示例：

let bundleFlags = bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION | bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_METADATA;
try {
  bundleManager.getBundleInfoForSelf(bundleFlags).then((data) => {
    hilog.info(0x0000, 'testTag', 'getBundleInfoForSelf successfully. Data: %{public}s', JSON.stringify(data));
  }).catch((err: BusinessError) => {
    hilog.error(0x0000, 'testTag', 'getBundleInfoForSelf failed. Cause: %{public}s', err.message);
  });
} catch (err) {
  let message = (err as BusinessError).message;
  hilog.error(0x0000, 'testTag', 'getBundleInfoForSelf failed: %{public}s', message);
}

参考文档：

https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-bundlemanager-bundleinfo-V5