Python 如何将文本写入Flask中的响应

我的应用程序中有一个端点，当它被击中时，我想向客户端发送响应。我在烧瓶里这样做

from flask import Response
def heartbeat():
response = Response()
response.headers['Last-Modified'] = datetime.now()
response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
response.headers['Expires'] = '-1'
return response(heartbeat)

这将引发一个错误，该调用包含三个参数。我错过了什么

from flask import Response, Flask

app = Flask(__name__)

@app.route("/")
def heartbeat():
    response = Response()
    response.headers['Last-Modified'] = datetime.now()
    response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
    response.headers['Expires'] = '-1'
    return response

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然后访问localhost:5000/就可以了。

您应该正确格式化代码！缩进不匹配。我使用make_response修复了它。谢谢