1. 安装与配置python3.6+flask+mysql数据库
   1. 下载安装MySQL数据库
   2. 下载安装MySQL-python 中间件
   3. pip install flask-sqlalchemy （Python的ORM框架SQLAlchemy）
2. mysql创建数据库
3. 数据库配置信息config.py
   SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:@localhost:3306/wuwen?charset=utf8'SQLALCHEMY_TRACK_MODIFICATIONS = False
4. 建立mysql和app的连接
5. 创建用户模型
   from flask import Flask,render_templatefrom flask_sqlalchemy import SQLAlchemyimport configapp = Flask(__name__)app.config.from_object(config)db=SQLAlchemy(app)class User(db.Model):    __tablename__='user'    id = db.Column(db.Integer,primary_key=True,autoincrement=True)    username = db.Column(db.String(20),nullable=False)    password = db.Column(db.String(20), nullable=False)    nickname = db.Column(db.String(20))db.create_all()@app.route('/')def base():    return render_template('base.html')@app.route('/login/')def login():    return render_template('login.html')@app.route('/regist/')def regist():    return render_template('regist.html')@app.route('/question/')def question():    return render_template('question.html')if __name__ == '__main__':    app.run(debug=True)