demo_requests_get_url.py:
➜ begtut>python demo_requests_get_url.py
<!DOCTYPE html>
<html>
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" />
<title>新手教程(begtut.com)</title>
<body>

<h1>这是一个测试页面</h1>

</body>
</html>