屏幕抓取問題我正在嘗試學(xué)習(xí)如何使用 querySelector 定位元素。在這個(gè)使用 Puppeteer 的小型 NodeJS 屏幕抓取應(yīng)用程序中，我想添加 Marketplace 上列出的項(xiàng)目的“位置”。在我嘗試添加這個(gè)新節(jié)點(diǎn)之前，腳本運(yùn)行良好，它將輸出以下內(nèi)容：[  {    itemTitle: 'Iphone 7 Unlocked 32GB Gold',    itemPrice: '$195',    itemURL: 'https://facebook.com//marketplace/item/1094335687596621/',    itemImg: 'https://scontent-mia3-1.xx.fbcdn.net/v/t1.0-0/c0.29.261.261a/p261x260/94707992_155656332613238_7356296336775315456_o.jpg?_nc_cat=108&_nc_sid=843cd7&_nc_oc=AQk4lXrzsGBkPFIWqx-sRgcDWuNd2kZlc1XJavKl0ZLJBcZZfaLFFUpZbSTTStFuT9U&_nc_ht=scontent-mia3-1.xx&oh=bc6f948b7c5930f1f81f85cbdf889ad5&oe=5ECEB781'  },  {    itemTitle: 'iPhone X 64gb Unlocked Everything Works',    itemPrice: '$180',    itemURL: 'https://facebook.com//marketplace/item/2576925735968131/',    itemImg: 'https://scontent-mia3-2.xx.fbcdn.net/v/t1.0-0/c0.83.750.750a/s261x260/84641729_222957132082738_3587337422137982976_o.jpg?_nc_cat=105&_nc_sid=843cd7&_nc_oc=AQmueUdOvX-NNTmxZOZp5gvyt-Szz9emk0it5HseboNA38BvQvKV0FT7mDwtqJo6z1g&_nc_ht=scontent-mia3-2.xx&oh=fbf3ffe04007566227eb76c608dd7fae&oe=5ECF5178'  }]上述結(jié)果的選擇器以下是用于獲取這些結(jié)果的內(nèi)容：const itemTitle = item.querySelector('div > div > span > div > a > div > div > div > span > div > span > div[class="l9j0dhe7 stjgntxs ni8dbmo4"').innerText;const itemPrice = item.querySelector('div > div > span > div > a > div > div > div > div > span[class="oi732d6d ik7dh3pa d2edcug0 qv66sw1b c1et5uql a8c37x1j s89635nw ew0dbk1b a5q79mjw g1cxx5fr lrazzd5p oo9gr5id"').innerText;const itemURL = `https://facebook.com/${item.getAttribute('href')}`;const itemImg = item.querySelector('div > div > span > div > a > div > div > div > div > div > div > img').getAttribute('src');             所以現(xiàn)在我想添加項(xiàng)目的位置：