Python如何實現一個登陸驗證？

你可以使用最簡單的python web框架Flask來實現登錄驗證。

創建app.py：

from flask import Flask

from flask import Flask, flash, redirect, render_template, request, session, abort

import os

app = Flask(__name__)

@app.route('/')

def home():

if not session.get('logged_in'):

return render_template('login.html')

else:

return "Hello Boss!"

@app.route('/login', methods=['POST'])

def do_admin_login():

if request.form['password'] == 'password' and request.form['username'] == 'admin':

session['logged_in'] = True

else:

flash('wrong password!')

return home()

if __name__ == "__main__":

app.secret_key = os.urandom(12)

app.run(debug=True,host='0.0.0.0', port=4000)

創建模板文件./templates/login.html，主要代碼如下：

<form action="/login" method="POST">

<input type="username" name="username" placeholder="Username">

<input type="password" name="password" placeholder="Password">

<input type="submit" value="Log in">

</form>

執行：

python app.py

訪問：

http://127.0.0.1:4000