关于selenium定位元素的问题

DrWhiter

我试着运行下面的代码：

1. from selenium import webdriver
   
2. from selenium.webdriver import ActionChains
   
3. from selenium.webdriver.common.by import By
   
4. from selenium.webdriver.support import expected_conditions as EC
   
5. from selenium.webdriver.support.ui import WebDriverWait
   
6. from selenium.common.exceptions import StaleElementReferenceException
   
7. import time
   
8. 
   
9. def login_fx(username,password):
   
10.     ......      # 此处是用登录bilbili的代码，最终返回一个已经登录的浏览器（B站首页）
    
11. 
    
12. def comment_fx():
    
13.     browser.get(F"ht请tps:/把/sp我ace.bil去ibili.co掉m/119/dyn！amic")    # 访问个人空间
    
14.     actions2 = ActionChains(browser)   # 重新实例化ActionChains对象
    
15.     time.sleep(1)
    
16.     browser.find_element_by_class_name("comment").click()    # 点击以展开评论区
    
17.     time.sleep(3)
    
18.     browser.find_element_by_class_name("ipt-txt").send_keys("123")     # 查找评论框
    
19. 
    
20. 
    
21. """
    
22. username = str(input("用户名："))
    
23. password = str(input("密码："))
    
24. """
    
25. 
    
26. login_fx(username,password)
    
27. comment_fx()

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报错如下：

1. Traceback (most recent call last):
   
2.   File "E:\002.py", line 55, in <module>
   
3.     comment_fx()
   
4.   File "E:\002.py", line 41, in comment_fx
   
5.     browser.find_element_by_class_name("ipt-txt").send_keys("123")
   
6.   File "D:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 564, in find_element_by_class_name
   
7.     return self.find_element(by=By.CLASS_NAME, value=name)
   
8.   File "D:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 976, in find_element
   
9.     return self.execute(Command.FIND_ELEMENT, {
   
10.   File "D:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    
11.     self.error_handler.check_response(response)
    
12.   File "D:\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    
13.     raise exception_class(message, screen, stacktrace)
    
14. selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":".ipt-txt"}
    
15.   (Session info: chrome=91.0.4472.114)
    

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XPath表达式和class属性均无法使用，我该怎么办？

nahongyan1997

1. browser.find_element_by_class_name("comment").click()    # 点击以展开评论区

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改成

1. btn = browser.find_element_by_class_name("comment")
   
2. 
   
3. browser.execute_script("arguments[0].click()",btn)
   

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就好了

DrWhiter

向下方滚动也无法加载