根据类名查找元素时 因为类名包含空格导致报错

# 导包
import time

from selenium import webdriver
from selenium.webdriver.common.by import By
from time import sleep
# 引用谷歌驱动
driver=webdriver.Chrome()
driver.get(r"D:\python-pro\baseapitest\xpath\html.html")
# 输入密码
driver.find_element(By.CLASS_NAME,"in fo").send_keys(12345)

time.sleep(5)
driver.quit()

因为类名包含空格导致报错

 解决办法

第一种

去掉空格和之后的内容

# 导包
import time

from selenium import webdriver
from selenium.webdriver.common.by import By
from time import sleep
# 引用谷歌驱动
driver=webdriver.Chrome()
driver.get(r"D:\python-pro\baseapitest\xpath\html.html")
# 输入密码
driver.find_element(By.CLASS_NAME,"in").send_keys(12345)

time.sleep(5)
driver.quit()

第二种  更换方法  CSS_SELECTOR 并且前面加点，空格也替换为点

# 导包
import time

from selenium import webdriver
from selenium.webdriver.common.by import By
from time import sleep
# 引用谷歌驱动
driver=webdriver.Chrome()
driver.get(r"D:\python-pro\baseapitest\xpath\html.html")
# 输入密码
driver.find_element(By.CSS_SELECTOR,".in.fo").send_keys(12345)

time.sleep(5)
driver.quit()

# 导包
import time

from selenium import webdriver
from selenium.webdriver.common.by import By
from time import sleep
# 引用谷歌驱动
driver=webdriver.Chrome()
driver.get(r"D:\python-pro\baseapitest\xpath\html.html")
# 输入第一个密码
driver.find_element(By.CSS_SELECTOR,".in.fo1").clear()
driver.find_element(By.CSS_SELECTOR,".in.fo1").send_keys(12345)
# 输入第二个密码
driver.find_element(By.CSS_SELECTOR,"input.in.fo2").clear()
driver.find_element(By.CSS_SELECTOR,"input.in.fo2").send_keys(12345)

time.sleep(5)
driver.quit()

第三种  xpath   完胜

# 导包
import time

from selenium import webdriver
from selenium.webdriver.common.by import By
from time import sleep
# 引用谷歌驱动
driver=webdriver.Chrome()
driver.get(r"D:\python-pro\baseapitest\xpath\html.html")
# 输入第一个密码
driver.find_element(By.XPATH,"//input[@class='in fo1']").clear()
driver.find_element(By.XPATH,"//input[@class='in fo1']").send_keys(1)


time.sleep(5)
driver.quit()