Check if an element exists in a list in Python by leveraging various efficient methods, each suited to different scenarios and requirements. This article will guide you through the multitude of ways to determine the presence of an element within a list, ranging from the straightforward in operator...
importasynciofromplaywright.async_apiimportasync_playwrightasyncdefcheck_element_exist():asyncwithasync_playwright()asp:browser=awaitp.chromium.launch()page=awaitbrowser.new_page()awaitpage.goto(' element=awaitpage.query_selector('h1')ifelement:print('Element exists')else:print('Element does not exis...
Python3 实例 定义一个列表,并判断元素是否在列表中。 实例1 test_list=[1,6,3,5,3,4] print("查看 4 是否在列表中 ( 使用循环 ) : ") foriintest_list: if(i==4): print("存在") print("查看 4 是否在列表中 ( 使用 in 关键字 ) : ") if(4intest_list): print("存在") 以上实例输...
driver.get("http://baidu.com")# 判断id为`input`的元素是否被加到了dom树里,并不代表该元素一定可见,如果定位到就返回WebElementelement = WebDriverWait(driver,5,0.5).until(expected_conditions.presence_of_element_located((By.ID,"s_btn_wr")))# implicitly_wait和WebDriverWait都设置时,取二者中最大...
import os # 检查指定文件是否存在 if os.path.exists('file.txt'): print("File exists.")...
刷新页面self.status=2# 登录成功标识print("###登录成功###")# 后续德云社可以讲ifself.isElement...
1 class Element: 2 """An XML element. 3 4 This class is the reference implementation of the Element interface. 5 6 An element's length is its number of subelements. That means if you 7 want to check if an element is truly empty, you should check BOTH 8 its length AND its text at...
if self.login_method==0: self.driver.get(login_url) # 载入登录界面 print('###开始登录###') elif self.login_method==1: if not os.path.exists('cookies.pkl'): # 如果不存在cookie.pkl,就获取一下 self.set_cookie() else: self.driver.get(target_url) ...
click_exists(timeout=5.0) # wait for 5s Other Element operations # Check if elements exists print(s(text="Dashboard").exists) # Find all matches elements, return Array of Element object s(text='Dashboard').find_elements() # Use index to find second element s(text='Dashboard')[1]....
self.status=2# 登录成功标识print("###登录成功###")# 后续德云社可以讲ifself.isElementExist('/html/body/div[2]/div[2]/div/div/div[3]/div[2]'):self.driver.find_element_by_xpath('/html/body/div[2]/div[2]/div/div/div[3]/div[2]').click() ...