Grinberg's Flask Mega Tutorial: Step-by-Step Guide for Flask Web...

flask
web
python
mysql
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"The new and improved Flask Mega Tutorial" 是由 Miguel Grinberg 所著的一本深入指南，专为那些想要学习和实践 Python Web 开发，特别是使用 Flask 微框架的学生和开发者设计。这本教程不仅包含了基础知识，如安装 Python 和 Flask，还涵盖了更高级的主题，如模板引擎、Web 表单处理、数据库集成（包括 SQLAlchemy 和 Flask-SQLAlchemy）、用户登录管理以及数据库迁移。 该书以“Hello, World!”示例开始，引导读者逐步了解 Flask 的基本工作原理，包括设置环境、创建简单的应用和运行第一个功能。章节2讨论了模板技术，如何通过条件语句、循环和继承来构建动态页面。模板是 Flask 应用的核心组件，能够将数据与HTML代码分离，提供丰富的可重用布局。 在第3章，作者介绍了 Flask-WTF，一个用于处理Web表单的工具包，涉及配置、表单验证、数据接收和链接生成。表单视图的编写展示了如何在用户界面与后端逻辑之间建立连接。 章节4深入探讨数据库集成，讲解了 Flask 中数据库的使用、SQLAlchemy 进行对象关系映射（ORM）以及迁移数据库结构的能力。作者通过实例展示了如何创建模型、执行迁移、以及处理数据库关系。 第5章重点关注用户身份验证，包括密码哈希和安全存储、Flask-Login 模块的介绍以及如何整合用户模型进行登录功能。这部分内容对于任何需要保护用户数据的应用至关重要。 在整个教程中，作者采用边做边学的方法，确保读者在实践中理解和掌握每项技能。无论是初学者还是有一定经验的开发者，都能从中找到适合自己的内容，提升在 Flask 项目中的开发能力。此外，书中还提及了 Bootstrap，尽管没有详细列出，但可以推测在某些章节可能涉及响应式前端设计的实践。 这是一本全面且实用的 Flask 教程，适合希望通过实际操作加深对 Python Web开发理解的人士，涵盖了从基础到进阶的各个层面，有助于读者快速成长为熟练的 Flask 开发者。

The New And Improved Flask Mega-Tutorial.pdf 2018最新 原版

2018-10-30 上传
amazon 五星好评 The Flask Mega-Tutorial is an overarching tutorial for Python beginner and intermediate developers that teaches web development with the Flask framework. The tutorial has been thoroughly revised and expanded in 2017, now containing 23 chapters. The concepts that are covered go well beyond Flask, including a wide range of topics Python web developers need to know when writing their own applications.

Flask Mega-Tutorial2017新版翻译PDF

2018-09-22 上传
本书不仅适合初级Web开发人员学习阅读，更是Python程序员用来学习高级Web开发技术的优秀参考书。 • 学习Flask应用的基本结构，编写示例应用； • 使用必备的组件，包括模板、数据库、Web表单和电子邮件支持； • 使用包和模块构建可伸缩的大型应用； • 实现用户认证、角色和个人资料； • 在博客网站中重用模板、分页显示列表以及使用富文本； • 使用基于Flask的REST式API，在智能手机、平板电脑和其他第三方客户端上实现可用功能； • 学习运行单元测试以及提升性能； • 将Web应用部署到生产服务器。

The Flask Mega-Tutorial

2018-12-19 上传
You are about to start on a journey to learn how to create web applications with Python and the Flask framework. in English, .mht

The new Java toolchain feature cannot be used at the project level in combination with source and/or target compatibility

2023-04-05 上传
Overall, the new Java toolchain feature can provide benefits such as improved performance and security, so it may be worth considering upgrading your project to be compatible with Java 9 or higher in ...

Shifts in China’s Rural and Urban Population: 2000-2020 The bar chart clearly reveals that from 2000 to 2020, while the total population in China increased moderately from 1.25 billion to 1.41 billion, population in urban and rural areas experienced dramatic shifts in different directions. Urban population rose from 450 million in 2000 to 670 million in 2010 and 900 million in 2020; contrastingly, rural population declined from 800 million in 2000 to 680 million in 2010 and 510 million in 2020. The population gap narrowed largely because of the joint effects of urbanization, unequal economic opportunities in rural and urban areas, and the expansion of higher education. In the first place, there was a large-scale urban sprawl during this period. Places which had been part of the vast countryside were incorporated into cities, causing hundreds of millions of rural dwellers to be passively transformed into urban residents. What’s more, while urban living standards improved greatly in these years, few economic opportunities fell on rural areas and most peasant families remained at the poverty line. Poverty prompted the call for change, leading a large quantity of healthy young peasants to leave their hometowns and flock to cities for a better living. Last but not least, China’s higher education grew at an unprecedented rate in these years. More high school graduates than ever before entered colleges and universities, most of whom preferred to stay in urban areas after graduation for personal development. The increase in urban population was a sure indication of economic and educational achievements in China. It benefited the country in many aspects, relieving the shortage of labor force in cities, lessening the burden of peasants to support their families, and affording young people from rural areas more opportunities to display their talents. However, the migration of rural residents into urban areas inevitably brought about disadvantages. Some of them, such as waste of arable land and left-behind children in the countryside, as well as traffic congestion and soaring housing prices in cities, have already called the attention of the government and corresponding measures have begun to take effect. But others, especially the inability of many peasants to integrate into urban life due to their lack of education and civilized habits, have long been neglected. In this sense, we cannot be satisfied with the superficially optimistic figures in the chart, but should endeavor to foster the integration of these newcomers by providing them with adequate assistance in educational and cultural aspects, so that they can find easier access to the prosperity and convenience of urban life and be more fully devoted to the development of cities.翻译成英文版两百单词左右的文章

2023-02-21 上传
The bar chart shows that from 2000 to 2020, while China's total population increased slightly from 1.25 billion to 1.41 billion, the population in urban and rural areas changed significantly....

GANprintR: Improved Fakes and Evaluation of the State of the Art in Face Manipulation Detection

2023-03-28 上传
The authors propose a new architecture for GANs called GANprintR that incorporates a perceptual loss function and a fine-tuning step to enhance the quality of generated images. In addition to ...

com.mysql.jdbc.Driver'. This is deprecated. The new driver class is

2024-04-18 上传
it is recommended to update to the latest version and use the 'com.mysql.cj.jdbc.Driver' class instead. This will ensure that your application can take advantage of the latest features and ...

I want you to act as an English translator, spelling corrector and improver.I will speak to you in any language and you will detect the language,translate it and answer in the corrected and improved version of my text, in English. I want you to replace my simplified A0-level words and sentenceswith more beautiful and elegant, upper level English words and sentences.Keep the meaning same, but make them more literary. I want you to onlyreply the correction, the improvements and nothing else, do not write explanations. My first sentence is The most remarkable properties of sodium alginate are its complexation and gelation with metal ions under mild conditions. Xanthan gum has a strong tolerance to acid, alkali, salt, heat, etc. Pseudoplasticity is the most significant characteristic of Xanthan gum, that is, it can form a typical non-Newtonian fluid with high viscosity at low concentration ，that is, steady-state shear viscosity decreases rapidly with the increase of shear rate.

2023-02-16 上传
The noteworthy attributes of sodium alginate include its ability to form complexes and gels with metal ions at moderate conditions. Xanthan gum exhibits a remarkable resistance to various factors, ...

How will the machinery industry change in the next 10 years

2023-04-03 上传
6. Artificial Intelligence: The use of artificial intelligence will increase, allowing for more predictive maintenance and improved quality control. Overall, the machinery industry is expected to ...

Traditional network security situation prediction methods depend on the accuracy of historical situation value. Moreover, there are differences in correlation and importance among various network security factors. In order to solve these problems, a combined prediction model based on the temporal convolution attention network (TCAN) and bi-directional gate recurrent unit (BiGRU) network optimized by singular spectrum analysis (SSA) and improved quantum particle swarm optimization algorithm (IQPSO) was proposed. This model was first decomposed and reconstructed into a series of subsequences through the SSA of network security situation data. Next, a prediction model of TCAN-BiGRU was established for each subsequence, respectively. The TCN with relatively simple structure was used in the TCAN to extract features from the data. Besides, the improved channel attention mechanism (CAM) was used to extract important feature information from TCN. Afterwards, the before-after status of the learning situation value of the BiGRU neural network was used to extract more feature information from sequences for prediction. Meanwhile, an improved IQPSO was proposed to optimize the hyper-parameter of the BiGRU neural network. Finally, the prediction results of subsequence were superimposed to obtain the final predicted value. In the experiment, on the one hand, the IQPSO was compared with other optimization algorithms; and the results showed that the IQPSO has better optimization performance; on the other hand, the comparison with traditional prediction methods was performed through the simulation experiment and the established prediction model; and the results showed that the combined prediction model established has higher prediction accuracy.

2023-02-19 上传
答：基于时间卷积注意网络（TCAN）和双向门驱动单元（BiGRU）网络，结合奇异谱分析（SSA）和...另一方面，通过仿真实验和建立的预测模型与传统预测方法进行比较，结果表明所建立的联合预测模型具有更高的预测准确性。
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