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
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...
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...
import os # 检查指定文件是否存在 if os.path.exists('file.txt'): print("File exists.")...
element_located_selection_state_to_be: 跟上面的方法作用一样,只是上面的方法传入定位到的element,而这个方法传入locator 检测document是否加载完成 另外还可以使用driver.execute_script('return document.readyState;') == 'complete'来检测document是否加载完成。
# 定义一个集合my_set={1,2,3,4,5}# 添加元素到集合my_set.add(6)print(my_set)# 输出: {1, 2, 3, 4, 5, 6}# 删除集合中的元素my_set.remove(3)print(my_set)# 输出: {1, 2, 4, 5, 6}# 检查元素是否在集合中if 4 in my_set:print('Element exists')# 输出: Element exists ...
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() ...