爬虫python入门
时间: 2023-08-07 07:07:20 浏览: 200
爬虫是一种通过自动化程序从互联网上获取数据的技术。在Python中,可以使用第三方库如requests和BeautifulSoup来编写爬虫程序。下面是一个简单的基于爬虫的单词查询器的Python代码示例:
```python
import requests
def spider(url, headers, data):
response = requests.post(url=url, headers=headers, data=data).json()
for key in response\['data'\]\[0\]:
print(key, response\['data'\]\[0\]\[key\])
def main():
url = 'https://fanyi.baidu.com/sug'
headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36 Edg/98.0.1108.56'
}
while True:
kw = input("输入需要查询的单词:")
data = {
'kw': kw
}
spider(url=url, headers=headers, data=data)
if __name__ == '__main__':
main()
```
这个程序通过发送POST请求到百度翻译的接口,获取单词的翻译结果,并将结果以键值对的形式打印出来。你可以根据自己的需求对代码进行修改和扩展。希望这个例子对你有帮助!如果你想学习更多关于爬虫的知识和入门教程,可以参考\[3\]中提供的链接。
#### 引用[.reference_title]
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