selenium-find_element相关内容（2）

find_element跟find_element_by_xxx的区别

1.查看文件D:\soft\python36\Lib\site-packages\selenium\webdriver\remote\webdriver.py  可发现find_element_by_xxx的方法都是返回的find_element方法

2.  查看文件D:\soft\python36\Lib\site-packages\selenium\webdriver\common\by.py 可发现

class By(object):
    """
    Set of supported locator strategies.
    """

    ID = "id"
    XPATH = "xpath"
    LINK_TEXT = "link text"
    PARTIAL_LINK_TEXT = "partial link text"
    NAME = "name"
    TAG_NAME = "tag name"
    CLASS_NAME = "class name"
    CSS_SELECTOR = "css selector"

明白以上后举个例子，以下红色字体实现点击百度一下的三种方法是等效的：

from selenium import webdriver
from selenium.webdriver.common.by import By
import time
driver = webdriver.Chrome()
driver.get("https://www.baidu.com/")
time.sleep(2)
driver.find_element(By.CSS_SELECTOR,".btn_wr>input").click()
# driver.find_element("css selector",".btn_wr>input").click()
# driver.find_element_by_css_selector(".btn_wr>input").click()
time.sleep(2)
driver.quit()

find_element 与 find_elements的区别

find_element得到的是一个元素

find_elements得到的是一个列表