def login():
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(username=form.username.data).first()
if user is not None and user.verify_password(form.password.data):
login_user(user, form.remember_me.data)
return redirect(request.args.get('next') or url_for('main.index'))
flash('账号或者密码错误')
return render_template('auth/login.html', form=form)
