Python的web框架有很多：
Flask，Django，Zope2，Web.py，Web2py，Pyramid，Bottle， Tornado。。。
Flask 轻量级，比较简单
from flask import Flask
app = Flask(__name__) @app.route("/")
def hello():
return "Hello World!" if __name__ == "__main__":
app.run()
例子
from flask import Flask
from flask import request app = Flask(__name__) @app.route('/', methods=['GET', 'POST'])
def home():
return '<h1>Home</h1>' @app.route('/signin', methods=['GET'])
def signin_form():
return '''<form action="/signin" method="post">
<p><input name="username"></p>
<p><input name="password" type="password"></p>
<p><button type="submit">Sign In</button></p>
</form>''' @app.route('/signin', methods=['POST'])
def signin():
# 需要从request对象读取表单内容：
if request.form['username']=='admin' and request.form['password']=='password':
return '<h3>Hello, admin!</h3>'
return '<h3>Bad username or password.</h3>' if __name__ == '__main__':
app.run()