Memory Allocation III CSE 351 Autumn 2016 Memory Allocation III https://xkcd.com/825/ CMPT 295 L23: Memory Allocation III Freeing with LIFO Policy (Case 1) Insert the freed block at the root of the list 2 Before After Root Boundary tags not shown, but don’t forget about them! free( ) Root CMPT 295 L23: Memory Allocation III […]
ECLT 5830 ECLT 5830 Assignment #4 Specification (Due: 7 Apr 2019) Specification Objective: In this assignment, you will need to Retrieve/add data from/to a MySQL Database using JavaScript Modify code from assignment #3 to retrieve item data from the database (instead of using the mock data) Send HTTP request from a Node.js app You can
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CE303 Lecture 3 Lecture 4. Copying Objects; I/O and Serialisation; Sockets and Client/Server 1 Copying Objects; shallow vs deep cloning Aliasing: Copying References Assignment of an object reference to a variable creates an alias: the variable refers to an existing object Exercise: Employee employee1 = new Employee(“Pete”); Employee employee2 = employee1; employee1.setSalary(“5000”); employee2.setSalary(“7000”); Passing an
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Cross-Site Scripting Attack (XSS) Cross-Site Scripting Attack (XSS) Outline The Cross-Site Scripting attack Reflected XSS Persistent XSS Damage done by XSS attacks XSS attacks to befriend with others XSS attacks to change other people’s profiles Self-propagation Countermeasures The Cross-Site Scripting Attack In XSS, an attacker injects his/her malicious code to the victim’s browser via the
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Jupyter Notebooks¶ Jupyter is a nod to 3 languages: Julia, Python, and R. Source @jakevdp. This document that you’re currently reading is a “Jupyter Notebook”. It’s like a text document, but you can run code on it! It can also display inline graphs, In [1]: from utils import plot_sine %matplotlib inline plot_sine()  Pull data from
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Notebook 5: Bits and Pieces¶ At this stage I guess you have enough knowledge, and hopefully enough skills to ‘do some damage’. There are a couple of structures that I would like to address. Structures that I use almost every day. Dictionaries¶ The first one is the ‘dictionary’. A dictionary is like a list, but
Preprocessing with NLTK¶ First, if you haven’t used iPython notebooks before, in order to run the code on this workbook, you can use the run commands in the Cell menu, or do shift-enter when an individual code cell is selected. Generally, you will have to run the cells in order for them to work properly.
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项目一：内容管理系统(后台) 模块四 栏目管理 PHP 读取栏目 ——准备测试数据 在管理员登录后，就可以对栏目进行管理。在项目数据库中，为栏目表添加测试数据，用于读取栏目功能的开发。添加测试数据的SQL语句如下。 INSERT INTO `cms_category` (`id`, `pid`, `name`, `sort`) VALUES (1, 0, ‘PHP’, 0), (2, 0, ‘Java’, 1), (3, 1, ‘PHP基础’, 0), (4, 1, ‘PHP高级’, 1); 栏目管理 读取栏目 ——读取栏目数据 在项目中，读取栏目数据的需求可能会频繁出现，因此将此功能写在函数中。在common目录下创建文件module.php，用于保存和数据相关的功能模块函数。 栏目管理 读取栏目 ——读取栏目数据 定义函数module_category()，用于获取栏目列表 该函数的参数$mode表示索引方式：id 或 pid，默认返回两种格式 定义一个静态变量$result，用于缓存查询结果 当第一次调用函数时，到数据库中获取数据，并分别根据id和pid创建数组索引，方便查找。 最后根据索引方式返回查询结果 栏目管理 编辑栏目 ——输出已有栏目 在项目中创建cp_category.php文件，该文件用于读取栏目数据显示在HTML模板中。 在该文件中载入初始化文件 接着定义display()函数，显示页面 从数据库中根据pid取出数据，载入HTML模板文admin\view\cateogory.html 调用函数display() 栏目管理 编辑栏目
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CE303 Lecture 4 PART I: JSON and GSON JSON Data-Interchange Format Java/C# serialisation only works between Java/C# programs How to exchange data more generally? JSON is a text format that can represent objects Human-readable and editable (within limits) Derived from “JavaScript Object Notation” Supported in many different programming languages with libraries for (de-)serialisation, parsers, etc.
Final Assessment¶ Your university is collaborating with a company to develop a tool for processing reports of cases of a particular disease. The company has a very specific way of doing things, and has asked you to design and build a JavaScript object to interact with their proprietary code. Your supervisor wants you to submit
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