[开发测试]selenium如何判断一个元素是否存在

结合WebDriverWait和expected_conditions判断

from selenium import webdriver
from selenium.webdriver.support import expected_conditions
from selenium.webdriver.support.wait import WebDriverWait

def is_element_exsist(driver, locator)
	'''
	结合WebDriverWait和expected_conditions判断元素是否存在，每间隔1s判断一次，60s超时，存在返回True,不存在返回False
	:param locator: locator为元组类型，如("id", "jn')
	:return: 布尔值，True或者False
	'''
	try:
		WebDriverWait(driver, 60, 1).until(expected_conditions.presence_of_element_located(locator))
		return True
	except:
		return False

if __name__ == "__main__":
	locator1 = ("id","jn")
	print(is_element_exsist(locator1))