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代码示例
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[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# List bucket labels\n\nRetrieve the labels for a Cloud Storage bucket.\n\nCode sample\n-----------\n\n### C++\n\n\nFor more information, see the\n[Cloud Storage C++ API\nreference documentation](/cpp/docs/reference/storage/latest).\n\n\nTo authenticate to Cloud Storage, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for client libraries](/storage/docs/authentication#client-libs).\n\n namespace gcs = ::google::cloud::storage;\n using ::google::cloud::StatusOr;\n [](gcs::Client client, std::string const& bucket_name) {\n StatusOr\u003cgcs::BucketMetadata\u003e bucket_metadata =\n client.GetBucketMetadata(bucket_name, gcs::Fields(\"labels\"));\n if (!bucket_metadata) throw std::move(bucket_metadata).status();\n\n if (bucket_metadata-\u003elabels().empty()) {\n std::cout \u003c\u003c \"The bucket \" \u003c\u003c bucket_name \u003c\u003c \" has no labels set.\\n\";\n return;\n }\n\n std::cout \u003c\u003c \"The labels for bucket \" \u003c\u003c bucket_name \u003c\u003c \" are:\";\n for (auto const& kv : bucket_metadata-\u003elabels()) {\n std::cout \u003c\u003c \"\\n \" \u003c\u003c kv.first \u003c\u003c \": \" \u003c\u003c kv.second;\n }\n std::cout \u003c\u003c \"\\n\";\n }\n\n### PHP\n\n\nFor more information, see the\n[Cloud Storage PHP API\nreference documentation](https://googleapis.github.io/google-cloud-php/#/docs/google-cloud/latest/storage/storageclient).\n\n\nTo authenticate to Cloud Storage, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for client libraries](/storage/docs/authentication#client-libs).\n\n use Google\\Cloud\\Storage\\StorageClient;\n\n /**\n * Prints a list of a bucket's lables.\n *\n * @param string $bucketName The name of your Cloud Storage bucket.\n * (e.g. 'my-bucket')\n */\n function get_bucket_labels(string $bucketName): void\n {\n $storage = new StorageClient();\n $bucket = $storage-\u003ebucket($bucketName);\n $info = $bucket-\u003einfo();\n if (isset($info['labels'])) {\n foreach ($info['labels'] as $labelKey =\u003e $labelValue) {\n printf('%s: %s' . PHP_EOL, $labelKey, $labelValue);\n }\n }\n }\n\n### Python\n\n\nFor more information, see the\n[Cloud Storage Python API\nreference documentation](https://cloud.google.com/python/docs/reference/storage/latest).\n\n\nTo authenticate to Cloud Storage, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for client libraries](/storage/docs/authentication#client-libs).\n\n import pprint\n\n from google.cloud import https://cloud.google.com/python/docs/reference/storage/latest/\n\n\n def get_bucket_labels(bucket_name):\n \"\"\"Prints out a bucket's labels.\"\"\"\n # bucket_name = 'your-bucket-name'\n storage_client = https://cloud.google.com/python/docs/reference/storage/latest/.https://cloud.google.com/python/docs/reference/storage/latest/google.cloud.storage.client.Client.html()\n\n bucket = storage_client.https://cloud.google.com/python/docs/reference/storage/latest/google.cloud.storage.client.Client.html#google_cloud_storage_client_Client_get_bucket(bucket_name)\n\n labels = bucket.https://cloud.google.com/python/docs/reference/storage/latest/google.cloud.storage.bucket.Bucket.html#google_cloud_storage_bucket_Bucket_labels\n pprint.pprint(labels)\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=storage)."]]