有个表格，希望遍历表格里面的执行按钮，进到详情页再返回，返回后报错：element is not attached to the page document
# 遍历列表里的所有行的第二列
table = driver.find_element(By.ID,'gxyyyCgcxList')
table_rows = table.find_elements(By.TAG_NAME,'tr')
rows = len(table_rows)
for i in range(0,rows):
time.sleep(1)
table = driver.find_element(By.ID, 'gxyyyCgcxList')
table_rows = table.find_elements(By.TAG_NAME, 'tr')
dn = table_rows[i].find_elements(By.TAG_NAME, 'td')[0].text
name = table_rows[i].find_elements(By.TAG_NAME, 'td')[4].text
et = table_rows[i].find_elements(By.TAG_NAME, 'td')[1].find_elements(By.LINK_TEXT, '执行')
for t in et:
t.click()
是因为进到详情页再返回，页面失效，无法定位到元素了，虽然检查页面，元素没有改变，这时候需要再for里重新定位下元素
