**from selenium import webdriver
driver=webdriver.Chrome("C:\Users\acer\Downloads\chromedriver-win64")
driver.get("https://google.com")
**

C:\Users\acer\PycharmProjects\python_selenium\.venv\Scripts\python.exe C:\Users\acer\PycharmProjects\python_selenium\Test_case01\Login.py 
  File "C:\Users\acer\PycharmProjects\python_selenium\Test_case01\Login.py", line 2
    driver=webdriver.Chrome("C:\Users\acer\Downloads\chromedriver-win64")
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape

Process finished with exit code 1

Change  to following script

from selenium import webdriver
driver=webdriver.Chrome("C:\Users\acer\Downloads\chromedriver-win64\chromedriver.exe")
driver.get("https://google.com")

字符串