from flask import Flask, redirect, request, abort, render_template, Response, url_for

'''
redirect 是flask 中的重定向
redirect 有三個引數
location 注意這裡的是你@app.route('/') 不是顯示/  是跳轉的index
statuscode  設定狀態碼
response  應答物件


'''
app = Flask(__name__)

@app.route('/')

def index():
    return Response('登陸成功')


@app.route(
 
'/login', methods=['GET', 'POST'])
def login():
    if request.method == 'GET':
        return render_template('login.html')
    if request.method == 'POST':
        uid = request.form.get('uid')
        password = request.form.get('password')

        if uid == 'xiaomo' and  password == '123':
            
 
return redirect(url_for('index'))   
        else:
            abort(401)

        return render_template('login.html')
    else:
        return render_template('login.html')


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

{% extends 'bash.html' %}
{% block title %}
使用者登入
{%  endblock %}

{% block header %}
    使用者登入
    
 
<link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='css/login.css') }}">

 {%  endblock %}
  {% block body %}
<form action="/login" method="POST">
     <table>
        <tbody>
            <tr>
                <td>使用者：</td>
                <td><input type="text" name="uid"></td>
            </tr>
            <tr>
                <td>密碼：</td>
                <td><input type="password" name="password"></td>
            </tr>
        <tr align="center">
            <td colspan="2">
                <button type="submit">確定</button>
                <button type="reset">取消</button>
            </td>
        </tr>
        </tbody>
    </table>
    session中uid的資料：    {{ session['uid'] }}
    {{uid}}
    {{password}}
</form>
 {%  endblock %}