Google Ads API 中实体的唯一标识符称为资源名称，表示为具有可预测格式的字符串。如果您知道资源名称的组成部分，则可以使用许多服务对象上提供的辅助方法来生成资源名称。
服务路径方法
所有旨在处理 API 中特定类型对象的读取或更改的服务都具有用于构造资源名称的辅助方法。例如，您可以为 Campaign 对象创建资源名称：
from google.ads.googleads.client import GoogleAdsClient
client = GoogleAdsClient.load_from_storage()
customer_id = "7892134783"
campaign_id = "1234567890"
campaign_service = client.get_service("CampaignService")
resource_name = campaign_service.campaign_path(customer_id, campaign_id)
每项服务还具有一个随附的 parse_*_path 方法，该方法可将资源名称解构为其各个片段的字典（如果字符串与预期格式不匹配，则返回空字典）：
from google.ads.googleads.client import GoogleAdsClient
client = GoogleAdsClient.load_from_storage()
resource_name = "customers/7892134783/campaigns/1234567890"
campaign_service = client.get_service("CampaignService")
segments = campaign_service.parse_campaign_path(resource_name)
customer_id = segments["customer_id"]
campaign_id = segments["campaign_id"]
复合资源名称
服务上的路径辅助程序会构建资源名称的复合片段。复合 ID 的不同部分在方法中作为单独的参数接受：
from google.ads.googleads.client import GoogleAdsClient
customer_id = "0987654321"
ad_group_id = "1234567890"
criterion_id = "74932"
client = GoogleAdsClient.load_from_storage()
ad_group_criterion_service = client.get_service("AdGroupCriterionService")
# An AdGroupCriterion resource name that uses these IDs looks like this:
# "customers/0987654321/adGroupCriteria/1234567890~74932"
resource_name = ad_group_criterion_service.ad_group_criterion_path(
customer_id, ad_group_id, criterion_id
)