web全栈_第3页-阿里云

先为大家带来一点福利，领取千元大礼包，阿里云代金券领取地址：https://promotion.aliyun.com/ntms/yunparter/invite.html?userCode=qyowv5ea jQuery1.jQuery介绍 jQuery是一个轻量级的JS库 - 是一个被封装好的JS...

Python全栈 Web（Flask框架、多表关联）

关系映射：一对多语法： 1."多"实体中外键列名=db.Column(db.Integer,db.ForeignKey('主表.主键')) 2."一"实体中  增加反向引用关系属性名=db.relationship('多表实体类名',关系选项) 常用的关系选项：选项名 ...

Python全栈 Web（Flask框架、CRUD、聚合分组）

模型：  # 根据现有的表结构构建模型类 class Users(db.Model): __tablename__ = "users" id = db.Column(db.Integer,primary_key=True) username = db.Column(db.String(80...

Python全栈 Web（Flask框架、模型、sqlalchemy）

Flask的文件传输：如果大批量上传数据的时候（如：大文件）就不能使用网页上传了主要是由于http协议不支持需要使用单独的上传工具（c/s版的） URL不存在参数上限的问题，HTTP协议规范也没有对URL长度进行限制。这个限制是特定的浏览器及服务器对它的限制。 IE...

Python全栈 Web（Flask框架、应用配置， request， response）

修改配置： app = Flask(__name__, template_folder="模板目录",     static_url_path="静态文件路径",     static_path="文件存储路径") app = Flask(__name__,t...

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Web应用防火墙（WAF）

适用于网站、H5、小程序等。全面应对被搜索引擎标识为危险；出现垃圾内容、恶意弹窗；域名劫持；Web应用漏洞；被挂马中毒；数据泄露；恶意注册灌水；被CC攻击导致Web应用崩溃或打不开；SQL注入、XSS跨站等攻击；爬虫等问题

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