WebDriver API 4-By定位元素（虫师《selenium3自动化测试实战--基于Python语言笔记11》）

使用By定位元素，需要先导入下面语句：

from selenium.webdriver.common.by import By

find_element(By.定位的类型,定位的值)

find_element(By.ID, "kw")
find_element(By.NAME, "wd")
find_element(By.CLASS_NAME, "s_ipt")
find_element(By.TAG_NAME, "input")
find_element(By.LINK_TEXT, "新闻")
find_element(By.PARTIAL_LINK_TEXT, "新")
find_element(By.XPATH, "//*[@class= 'bg s_btn']")
find_element(By.CSS_SELECTOR, "span.bg s_btn_wr>input#su")