driver.find_element_by_xpath("/html/body/div[1]/div/div[3]/div/div[1]/div[1]/div[2]/div[3]/div[3]/div/div[1]").click()
想把后面的div[3]变成div[a]该怎么写
譬如错误写法
```python
for a in range(3,7):
driver.find_element_by_xpath("/html/body/div[1]/div/div[3]/div/div[1]/div[1]/div[2]/div[3]/div[a]/div/div[1]").click()
```