selenium多种定位

driver=webdriver.Chrome()
driver.get("http://www.baidu.com")
driver.find_element_by_id('kw').send_keys('python')
driver.find_element_by_name('wd').send_keys('python')
driver.find_element_by_tag_name('input').send_keys('python')
driver.find_element_by_class_name('s_ipt').send_keys('python')
driver.find_element_by_link_text("新闻").click()
driver.find_element_by_partial_link_text('hao').click()