NameError: name 'headers' is not defined 显示报错

Question

```python
import requests
import parsel
headers:{
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36'
}
def get_response(html_url):
    response=requests.get(url=url,headers=headers)
    return response

def get_all_url(html_url):
    response=get_response(html_url)
    selector=parsel.selector(response.text)
    dds=selector.css('#list dd')
    title=selector.css('#info h1::text').get()
    for dd in dds:
        urls= dd.css('a::attr(href)').get()
        print(urls)

if __name__=='__main__':
    url="https://www.9biquge.com/35/35686/"
    get_all_url(url)

```

Answer 1