from flask import Flask, render_template, url_for, session, request, redirectapp = Flask(__name__, template_folder="templates111", static_folder="jingtaimulu", static_url_path='/static')  # √
app.secret_key = "wang"def confirm(func):def inner(*args, **kwargs):if session.get('auth'):return func(*args, **kwargs)else:next_url = request.path[1:]return redirect(url_for("login") + f"?next={next_url}")return inner@app.route('/', endpoint="index")
@confirm
def index():return "index"@app.route('/login', methods=["GET", "POST"])
def login():msg = ""if request.method == "POST":auth = request.form.get("auth")if auth:session["auth"] = authnext_url = request.args.get("next", "index")return redirect(url_for(next_url))else:msg = "error"return render_template("login.html", msg=msg)@app.route('/shopping/', endpoint="shopping")
def shopping():return "Shopping"if __name__ == '__main__':app.run(debug=True)

class Flask(_PackageBoundObject)　　

　　def __init__(self,import_name,static_url_path=None,   # 静态文件的访问路径, 就相当于别名, 类似于django中的 {% load static %}, 资源的url开头就是这里指定的路径static_folder='static',     # 静态文件目录的路径 默认当前项目中的static目录static_host=None,   # 远程静态文件所用的Host地址, 如CDN的主机地址host_matching=False,    # 是否开启host主机位匹配,是要与static_host一起使用,如果配置了static_host, 则必须赋值为Truesubdomain_matching=False,   # 理论上来说是用来限制SERVER_NAME子域名的,但是目前还没有感觉出来区别在哪里template_folder='templates',    # template模板目录, 默认当前项目中的 templates 目录instance_path=None,     # 指向另一个Flask实例的路径instance_relative_config=False,     # 是否加载另一个实例的配置root_path=None      # 主模块所在的目录的绝对路径,默认项目目录