css_selector和xpath的路径定位

css_selector路径定位原理，先定位第一个，然后在加一个，表示第二个，css_selector如下

brower.find_element_by_css_selector('table>tbody#plan_list>tr+tr>td>input[type="checkbox"]').click()

写成by_xpath如下

brower.find_element_by_xpath('//table/tbody[@id="plan_list"]/tr[2]/td/input[type="checkbox"]').click()

 

css_selector如下

brower.find_element_by_css_selector('table>tbody#plan_list>tr+tr+tr>td>input[type="checkbox"]').click()

写成by_xpath如下

brower.find_element_by_xpath('//table/tbody[@id="plan_list"]/tr[3]/td/input[type="checkbox"]').click()

 

有时候用by_xpath会出现如下报错，应该用css_selector

 could not be scrolled into view