text: const cheerio = require('cheerio');
  
  const ProcessFeed = async (list) => {
      const host = 'https://leetcode.com';
      return await Promise.all(
          list.map(async (item) => {
              const $ = cheerio.load(item);
              const $title = $('b');
              const description =
                  $('span')
                      .eq(0)
                      .text() +
                  $('span')
                      .eq(1)
                      .text();
              // 还原相对链接为绝对链接
              const pubDate = $('span')
                  .eq(2)
                  .text();
              const bb = $('a[href]').get()[0];
              const itemUrl = host + $(bb).attr('href');
              let n = 0,
                  h = 0;
              const n1 = pubDate.search(/year/);
              const n2 = pubDate.search(/month/);
              const n3 = pubDate.search(/week/);
              const n4 = pubDate.search(/day/);
              const n5 = pubDate.search(/hour/);
              const n6 = pubDate.search(/minute/);
              if (n1 !== -1) {
                  n = n + parseInt(pubDate[n1 - 2]) * 365;
              }
              if (n2 !== -1) {
                  n = n + parseInt(pubDate[n2 - 2]) * 30;
              }
              if (n3 !== -1) {
                  n = n + parseInt(pubDate[n3 - 2]) * 7;
              }
              if (n4 !== -1) {
                  n = n + parseInt(pubDate[n4 - 2]) * 1;
              }
              if (n5 !== -1) {
                  h = h + parseInt(pubDate[n5 - 2]) * 3600;
              }
              if (n6 !== -1) {
                  h = h + parseInt(pubDate[n6 - 2]) * 60;
              }
              const now = new Date();
              const Datenow = new Date(now.getTime() - n * 24 * 3600 * 1000 - h * 1000).toISOString();
              // 列表上提取到的信息
              const single = {
                  title: $title.text(),
                  description: description,
                  link: itemUrl,
                  guid: itemUrl,
                  pubDate: Datenow,
              };
              return Promise.resolve(Object.assign({}, single));
          })
      );
  };
  module.exports = {
      ProcessFeed,
  };
  