demo.py（設定、獲取、刪除cookie）：

# coding:utf-8

from flask import Flask, make_response, request


app = Flask(__name__)

# 設定cookie
@app.route("/set_cookie")
def set_cookie():
    resp = make_response("success")  # "success"是響應體
    # 設定cookie, 預設有效期是臨時cookie，瀏覽器關閉就失效
    resp.set_cookie("Name", "Python")
    # max_age設定有效期，單位：秒
    resp.set_cookie("Name2", "Python1", max_age=3600)
    # 設定cookie其實就是通過設定響應頭實現的。
    # resp.headers["Set-Cookie"] = "Name3=Python3; Expires=Sat, 18-Nov-2017 04:36:04 GMT; Max-Age=3600; Path=/"
    return resp


# 獲取cookie
@app.route("/get_cookie")
def get_cookie():
    c = request.cookies.get("Name")
    return c


# 刪除cookie
@app.route("/delete_cookie")
def delete_cookie():
    resp = make_response("del success")
    # 刪除cookie
    resp.delete_cookie("Name1")
    return resp


if __name__ == '__main__':
    app.run(debug=True)