//div[@class="product-list"]/div[@data-price > 3000]
chrome 中使用 $x,比jquery更好玩
https://www.cnblogs.com/xiongbatianduxing/p/19085925
// 使用JavaScript等待元素出现
function waitForElement(xpath, timeout = 5000) {
const startTime = new Date().getTime();
return new Promise((resolve, reject) => {
const checkExist = setInterval(() => {
const element = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
if (element) {
clearInterval(checkExist);
resolve(element);
} else if (new Date().getTime() - startTime > timeout) {
clearInterval(checkExist);
reject(new Error(`元素未在${timeout}ms内出现: ${xpath}`));
}
}, 100);
});
}
// 使用方法
waitForElement('//div[@id="dynamic-content"]')
.then(element => console.log('找到元素:', element))
.catch(error => console.error(error));
