获取支持的目标语言（高级版）

使用目标语言名称检索支持的语言代码列表。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

发现支持的语言（高级版）

代码示例

Go

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Go 设置说明进行操作。如需了解详情，请参阅 Translation Go API 参考文档。

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)

// getSupportedLanguagesForTarget gets a list of supported language codes with target language names.
func getSupportedLanguagesForTarget(w io.Writer, projectID string, languageCode string) error {
	// projectID := "my-project-id"
	// languageCode := "is"

	ctx := context.Background()
	client, err := translate.NewTranslationClient(ctx)
	if err != nil {
		return fmt.Errorf("NewTranslationClient: %v", err)
	}
	defer client.Close()

	req := &translatepb.GetSupportedLanguagesRequest{
		Parent:              fmt.Sprintf("projects/%s/locations/global", projectID),
		DisplayLanguageCode: languageCode,
	}

	resp, err := client.GetSupportedLanguages(ctx, req)
	if err != nil {
		return fmt.Errorf("GetSupportedLanguages: %v", err)
	}

	// List language codes of supported languages
	fmt.Fprintf(w, "Supported languages:\n")
	for _, language := range resp.GetLanguages() {
		fmt.Fprintf(w, "Language code: %v\n", language.GetLanguageCode())
		fmt.Fprintf(w, "Display name: %v\n", language.GetDisplayName())
	}

	return nil
}

Java

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Java 设置说明进行操作。如需了解详情，请参阅 Translation Java API 参考文档。

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import com.google.cloud.translate.v3.GetSupportedLanguagesRequest;
import com.google.cloud.translate.v3.LocationName;
import com.google.cloud.translate.v3.SupportedLanguage;
import com.google.cloud.translate.v3.SupportedLanguages;
import com.google.cloud.translate.v3.TranslationServiceClient;
import java.io.IOException;

public class GetSupportedLanguagesForTarget {

  public static void getSupportedLanguagesForTarget() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "YOUR-PROJECT-ID";
    // Supported Languages: https://cloud.google.com/translate/docs/languages
    String languageCode = "your-language-code";
    getSupportedLanguagesForTarget(projectId, languageCode);
  }

  // Listing supported languages with target language name
  public static void getSupportedLanguagesForTarget(String projectId, String languageCode)
      throws IOException {

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (TranslationServiceClient client = TranslationServiceClient.create()) {
      // Supported Locations: `global`, [glossary location], or [model location]
      // Glossaries must be hosted in `us-central1`
      // Custom Models must use the same location as your model. (us-central1)
      LocationName parent = LocationName.of(projectId, "global");
      GetSupportedLanguagesRequest request =
          GetSupportedLanguagesRequest.newBuilder()
              .setParent(parent.toString())
              .setDisplayLanguageCode(languageCode)
              .build();

      SupportedLanguages response = client.getSupportedLanguages(request);

      // List language codes of supported languages
      for (SupportedLanguage language : response.getLanguagesList()) {
        System.out.printf("Language Code: %s\n", language.getLanguageCode());
        System.out.printf("Display Name: %s\n", language.getDisplayName());
      }
    }
  }
}

Node.js

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Node.js 设置说明进行操作。如需了解详情，请参阅 Translation Node.js API 参考文档。

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/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const location = 'global';

// Imports the Google Cloud Translation library
const {TranslationServiceClient} = require('@google-cloud/translate');

// Instantiates a client
const translationClient = new TranslationServiceClient();

async function getSupportedLanguages() {
  // Construct request
  const request = {
    parent: `projects/${projectId}/locations/${location}`,
    displayLanguageCode: 'en',
  };

  // Get supported languages
  const [response] = await translationClient.getSupportedLanguages(request);

  for (const language of response.languages) {
    // Supported language code, generally consisting of its ISO 639-1 identifier, for
    // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
    // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
    console.log(`Language - Language Code: ${language.languageCode}`);
    // Human readable name of the language localized in the display language specified
    // in the request.
    console.log(`Language - Display Name: ${language.displayName}`);
    // Can be used as source language.
    console.log(`Language - Support Source: ${language.supportSource}`);
    // Can be used as target language.
    console.log(`Language - Support Target: ${language.supportTarget}`);
  }
}

getSupportedLanguages();

PHP

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 PHP 设置说明进行操作。如需了解详情，请参阅 Translation PHP API 参考文档。

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use Google\Cloud\Translate\V3\TranslationServiceClient;

$translationServiceClient = new TranslationServiceClient();

/** Uncomment and populate these variables in your code */
// $languageCode = 'en';
// $projectId = '[Google Cloud Project ID]';
$formattedParent = $translationServiceClient->locationName($projectId, 'global');

try {
    $response = $translationServiceClient->getSupportedLanguages(
        $formattedParent,
        ['displayLanguageCode' => $languageCode]
    );
    // List language codes of supported languages
    foreach ($response->getLanguages() as $language) {
        printf('Language Code: %s' . PHP_EOL, $language->getLanguageCode());
        printf('Display Name: %s' . PHP_EOL, $language->getDisplayName());
    }
} finally {
    $translationServiceClient->close();
}

Python

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Python 设置说明进行操作。如需了解详情，请参阅 Translation Python API 参考文档。

在 GitHub 上查看反馈

from google.cloud import translate

def get_supported_languages_with_target(project_id="YOUR_PROJECT_ID"):
    """Listing supported languages with target language name."""

    client = translate.TranslationServiceClient()

    location = "global"

    parent = f"projects/{project_id}/locations/{location}"

    # Supported language codes: https://cloud.google.com/translate/docs/languages
    response = client.get_supported_languages(
        display_language_code="is", parent=parent  # target language code
    )
    # List language codes of supported languages
    for language in response.languages:
        print("Language Code: {}".format(language.language_code))
        print("Display Name: {}".format(language.display_name))

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。