1. 示例视图函数 @app.route('/user') def user(): user = 'libai' return render_template('user.html',user=user) 1. 2. 3. 4. 2.示例模板 {% if user %} hello {{user}} {% else %} welcome to flask {% endif %} hello world 1. 2. 3. 4. 5. 6. 7. 8. 9...