from flask import Flask, render_template

from flask import views  # 导入视图模块用于CBV

app = Flask(__name__, static_folder="static")

# FBV

@app.route('/')

def index():

    flash('gang_dan', 'name')

    flash(, "age")

    return "this's index"

# CBV

class LoginClass(views.MethodView):

    def get(self):

        return render_template("login.html")

    def post(self):

        return "ok"

# 利用源码self.add_url_rule(rule, endpoint, f, **options)可得以下写法

app.add_url_rule("/login", view_func=LoginClass.as_view("login"))

app.run(debug=True, host="127.0.0.1", port="")

from flask import Flask, render_template

from flask import flash, get_flashed_messages  # flash设置 和取flash值

from flask import views  # 导入视图模块

app = Flask(__name__, static_folder="static")

app.secret_key = 'guan_ta_shi_sha_key'  # 使用flash需要设置session  不然报错。。。

# FBV

@app.route('/')

def index():

    flash('gang_dan', 'name')

    flash(, "age")

    return "this's index"

# CBV

class LoginClass(views.MethodView):

    def get(self):

        print(get_flashed_messages("name"))  # 取出所有键值对

        # [('name', 'gang_dan'), ('age', )]

        print(get_flashed_messages("age"))  # 取出所有键值对

        # [('name', 'gang_dan'), ('age', )]

        print(get_flashed_messages())  # 取出所有的key

        # ['gang_dan', ]

        return render_template("login.html")

    def post(self):

        return "ok"

app.add_url_rule("/login", view_func=LoginClass.as_view("login"))

app.run(debug=True, host="127.0.0.1", port="")