"""
1、让元素滚动到可见区域后，再操作。（大部分的网页自己会滚，直接找元素---下一页）
drive.find_element("id","kw").send_keys("hhh",Keys.ENTER)
loc =(By.XPATH,'//a[text()="下一页 >"]')
WebDriverWait(drive,20).until(ec.visibility_of_element_located(loc))
els = drive.find_element(*loc).click()
2、元素本身：els.location_once_scrolled_into_view
drive.find_element("id","kw").send_keys("hhh",Keys.ENTER)
loc =(By.XPATH,'//a[text()="下一页 >"]')
WebDriverWait(drive,20).until(ec.visibility_of_element_located(loc))
els = drive.find_element(*loc)
els.location_once_scrolled_into_view
3、js代码滚动：element.scrollIntoView（）
drive.find_element("id","kw").send_keys("hhh",Keys.ENTER)
loc =(By.XPATH,'//a[text()="下一页 >"]')
WebDriverWait(drive,20).until(ec.visibility_of_element_located(loc))
els = drive.find_element(*loc)
js = 'argument[0].scrollIntoView()'
drive.execute_script(js,els)
4、在f12种调试模式可以输入window.scrollIo(0,200)----根据大小滚动
