如何在selenium中检查项目是否显示或是否存在？

from selenium import webdriver

driver = webdriver.Chrome()
driver.get("https://www.example.com")

element = driver.find_element_by_id("element_id")
if element.is_displayed():
    print("元素可见")
else:
    print("元素不可见或不存在")

from selenium import webdriver

driver = webdriver.Chrome()
driver.get("https://www.example.com")

elements = driver.find_elements_by_id("element_id")
if len(elements) > 0:
    print("元素存在")
else:
    print("元素不存在")

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException

driver = webdriver.Chrome()
driver.get("https://www.example.com")

try:
    element = driver.find_element_by_id("element_id")
    print("元素存在")
except NoSuchElementException:
    print("元素不存在")