如何从适当的刮板中获取标签：Web，Cheerio和Puppeteer

Question

[当我根据Apify网站上的示例尝试获取起始URL的标签时，出现2019-12-26T15:35:17.723Z INFO: request.userData.label: undefined错误。

[Cheerio刮板example code：

async function pageFunction(context) {
    const { request, log, skipLinks, $ } = context;
    log.info(`request.userData.label ${request.userData.label}`);
}

Pupperrer刮板example code：

async function pageFunction(context) {
    const { request, log, skipLinks, page } = context;
     log.info(`request.userData.label ${request.userData.label}`);

}

Answer 1

这在Introduction section中有解释。您需要为开始和伪URL设置标签。