探索支援的語言 (進階版)

使用 Cloud Translation API 列出 NMT 模型支援的語言。如要瞭解 AutoML Translation 支援的語言組合，請參閱自訂模型支援的語言。

事前準備

如要開始使用 Cloud Translation API，您必須擁有已啟用 Cloud Translation API 的專案，並具備適當的憑證。您也可以安裝常用程式設計語言的用戶端程式庫，協助您呼叫 API。詳情請參閱「設定」頁面。

列出支援的語言

REST

如要取得所有支援語言的清單，請對 https://translation.googleapis.com/v3/projects/project-number-or-id/locations/location/supportedLanguages URL 發出 GET 要求。以下為使用 curl 和 PowerShell 的 GET 要求範例。範例中使用的存取憑證，屬於使用 Google Cloud Google Cloud CLI 建立的專案服務帳戶。如需安裝 Google Cloud CLI、使用服務帳戶建立專案，以及取得存取憑證的操作說明，請參閱「設定」頁面。

使用任何要求資料之前，請先替換以下項目：

  • PROJECT_NUMBER_OR_ID： Google Cloud 專案的數值或英數字元 ID

HTTP 方法和網址：

GET https://translation.googleapis.com/v3/projects/PROJECT_NUMBER_OR_ID/locations/global/supportedLanguages

如要傳送要求，請展開以下其中一個選項：

您應該會收到如下的 JSON 回應：

{
  "languages": [
     "languageCode": "af",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "am",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "ar",
      "supportSource": true,
      "supportTarget": true
    },
    ....
    {
      "languageCode": "zu",
      "supportSource": true,
      "supportTarget": true
    }
   ]
}

清單會依語言代碼的字母順序排序。這項查詢會傳回支援語言的 ISO-639 語言代碼。部分語言也會包含國家/地區代碼，例如 zh-CN 或 zh-TW。例如：

   {
      "languageCode": "zh-TW",
      "supportSource": true,
      "supportTarget": true
    },

Go

在試用這個範例之前，請先按照Go使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Go API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	"cloud.google.com/go/translate/apiv3/translatepb"
)

// getSupportedLanguages gets a list of supported language codes.
func getSupportedLanguages(w io.Writer, projectID string) error {
	// projectID := "my-project-id"

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

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

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

	return nil
}

Java

在試用這個範例之前，請先按照Java使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Java API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

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 GetSupportedLanguages {

  public static void getSupportedLanguages() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "YOUR-PROJECT-ID";
    getSupportedLanguages(projectId);
  }

  // Getting a list of supported language codes
  public static void getSupportedLanguages(String projectId) 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()).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());
      }
    }
  }
}

Node.js

在試用這個範例之前，請先按照Node.js使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Node.js API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

/**
 * 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}`,
  };

  // 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();

Python

在試用這個範例之前，請先按照Python使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Python API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

from google.cloud import translate


def get_supported_languages(
    project_id: str = "YOUR_PROJECT_ID",
) -> translate.SupportedLanguages:
    """Getting a list of supported language codes.

    Args:
        project_id: The GCP project ID.

    Returns:
        A list of supported language codes.
    """
    client = translate.TranslationServiceClient()

    parent = f"projects/{project_id}"

    # Supported language codes: https://cloud.google.com/translate/docs/languages
    response = client.get_supported_languages(parent=parent)

    # List language codes of supported languages.
    print("Supported Languages:")
    for language in response.languages:
        print(f"Language Code: {language.language_code}")

    return response

其他語言

C#： 請按照用戶端程式庫頁面的 C# 設定說明操作， 然後前往 .NET 適用的 Cloud Translation 參考說明文件。

PHP： 請按照用戶端程式庫頁面的 PHP 設定說明 操作，然後前往 PHP 適用的 Cloud Translation 參考說明文件。

Ruby： 請按照用戶端程式庫頁面的 Ruby 設定說明 操作，然後前往 Ruby 適用的 Cloud Translation 參考文件。

以譯文語言名稱列出支援的語言

REST

以下為傳回支援語言清單的另一個範例，傳回的語言名稱以指定譯文語言編寫。傳回的清單依譯文語言的字母順序排序。

使用任何要求資料之前，請先替換以下項目：

  • PROJECT_NUMBER_OR_ID： Google Cloud 專案的數值或英數字元 ID

HTTP 方法和網址：

GET https://translation.googleapis.com/v3/projects/PROJECT_NUMBER_OR_ID/locations/global/supportedLanguages?display_language_code=sq

如要傳送要求，請展開以下其中一個選項：

您應該會收到如下的 JSON 回應：

{
  "languages": [{
      "languageCode": "af",
      "displayName": "Afrikanisht",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "am",
      "displayName": "Amarikisht",
      "supportSource": true,
      "supportTarget": true
    },
    {
      "languageCode": "en",
      "displayName": "Anglisht",
      "supportSource": true,
      "supportTarget": true
    },
    ...{
      "languageCode": "zu",
      "displayName": "Zulu",
      "supportSource": true,
      "supportTarget": true
    }

	]
}

在這個範例中，查詢所傳回的語言代碼與上述範例相同，此外還傳回了 name 字串，指定以譯文語言寫入之語言的名稱。在本例中，語言為阿爾巴尼亞文 (sq)。

Go

在試用這個範例之前，請先按照Go使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Go API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	"cloud.google.com/go/translate/apiv3/translatepb"
)

// 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: %w", 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: %w", 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

在試用這個範例之前，請先按照Java使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Java API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

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

在試用這個範例之前，請先按照Node.js使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Node.js API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

/**
 * 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();

Python

在試用這個範例之前，請先按照Python使用用戶端程式庫的 Cloud Translation 快速入門導覽課程中的操作說明進行設定。詳情請參閱 Cloud Translation Python API 參考說明文件。

如要向 Cloud Translation 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

from google.cloud import translate


def get_supported_languages_with_target(
    project_id: str = "YOUR_PROJECT_ID",
) -> translate.SupportedLanguages:
    """Listing supported languages with target language name.

    Args:
        project_id: Your Google Cloud project ID.

    Returns:
        Supported languages.
    """
    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(f"Language Code: {language.language_code}")
        print(f"Display Name: {language.display_name}")

    return response

其他語言

C#： 請按照用戶端程式庫頁面的 C# 設定說明操作， 然後前往 .NET 適用的 Cloud Translation 參考說明文件。

PHP： 請按照用戶端程式庫頁面的 PHP 設定說明 操作，然後前往 PHP 適用的 Cloud Translation 參考說明文件。

Ruby： 請按照用戶端程式庫頁面的 Ruby 設定說明 操作，然後前往 Ruby 適用的 Cloud Translation 參考文件。

其他資源

  • 如需解決常見問題或錯誤的說明，請參閱「疑難排解」頁面。