增加等待时间，判断弹框是否出现

metting.py

@@ -9,6 +9,8 @@ from selenium import webdriver
 from selenium.common import exceptions
 from selenium.webdriver.chrome.service import Service
 from selenium.webdriver.common.by import By
+from selenium.webdriver.support import expected_conditions as EC
+from selenium.webdriver.support.wait import WebDriverWait
 
 """
 根据table的id属性和table中的某一个元素定位其在table中的位置
@@ -63,6 +65,20 @@ def send_file(url, file_path):
         response2 = requests.post(url, files=files)
     return response2
 
+def get_element(my_driver, xpaths):
+    """
+    判断是否存在元素并获取元素对象
+    :param my_driver:
+    :param xpaths: xpaths表达式
+    :return: 元素对象或为空
+    """
+    try:
+        target = my_driver.find_element_by_xpath(xpaths)
+    except exceptions.NoSuchElementException:
+        return False
+    else:
+        return target
+
 if __name__ == "__main__":
     # 创建一个 Chrome WebDriver 实例
     options = webdriver.ChromeOptions()
@@ -78,11 +94,16 @@ if __name__ == "__main__":
     driver.get(
         'https://www.cmegroup.com/markets/interest-rates/cme-fedwatch-tool.html?redirect=/trading/interest-rates/countdown-to-fomc.html')
     sleep(5)
-    try:
-        driver.find_element(By.XPATH, '/html/body/div[4]/div[3]/div/section/span').click()
-        driver.find_element(By.XPATH, '//*[@id="onetrust-accept-btn-handler"]').click()
-    except exceptions.NoSuchElementException:
-        print("弹框不存在")
+    btn_pop = get_element(driver, '/html/body/div[4]/div[3]/div/section/span')
+    if btn_pop:
+        btn_pop.click()
+
+    accept_btn = get_element(driver, '//*[@id="onetrust-accept-btn-handler"]')
+    if accept_btn:
+        accept_btn.click()
+
+    WebDriverWait(driver, 10).until(
+        EC.visibility_of_element_located((By.XPATH, '//*[@id="cmeIframe-jtxelq2f"]')))  # iframe是否出现
 
     # page_height = driver.execute_script('return document.documentElement.scrollHeight')  # 页面高度
     driver.execute_script("window.scrollBy(0,{})".format(600))