#!r6rs ( import ( rnrs base ( 6 ) )          ( rnrs io simple ( 6 ) ) ) ( define ( deriv exp var )    ( define ( variable? x )       ( symbol? x ) )        ( define ( =number? exp num )       ( and ( number? exp )             ( = exp num ) ) )      …

1.What is it? An abstract data type is a set of objects together with a set of operations. 抽象数据类型是带有一组操作的一组对象的集合. ADTS=objects+operations 2.How to define? ADT Name Describe of data; Operations; End ADT Operations description: Name(parameter list) Inp…

20182320<Program Design and Data Structures>Learning Summary Week9 1.Summary of Textbook's Content 1.1 Chapter 15:Tree 1.1.1 Concept of Tree: 'Tree' is a data sturcture,which is non-linear. It consists of nodes and edges. 1.1.2 Some important concep…

https://mp.weixin.qq.com/s/DOLkEi-_qQt6lWOhJ2hxVQ 简单介绍TLDebugModuleInner中抽象数据寄存器的实现. 1. abstractDataMem 以字节为单位,表示抽象数据寄存器: dmactive为假时,其值为零: 2. abstractDataNxt 用于存放abstractDataMem寄存器的将要使用的值. 3. 寄存器组 abstract data是一组寄存器,包含了多个寄存器.这里使用RegFieldGroup来定义: 这…

1.简介 STM8S内部的FLASH程序存储器和数据EEPROM是由一组通用寄存器来控制的:所以我们可以通过这些通用寄存器来编程或擦除存储器的内容.设置写保护.或者配置特定的低功耗模式.我们也可以自己对器件的 option byte 进行编程.在这里我们只简单的讲解如何对STM8S内部的数据存储区域(data memory)进行写操作.读操作.擦除操作. 2.存储架构图 STM8S内部存储包括:FLASH程序存储器(FLASH program memory)和数据EEPROM(DATA EEPR…

Interface declares operations, not data structure Implementation is hidden from client (encapsulation) Use features of programming language to ensure encapsulation Common practice Allocation and deallocation of data structure handled by module Names…

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20162314 2017-2018-1 <Program Design & Data Structures>Learning Summary Of The Fifth Week Summary of Key Concepts A collection is an object that gathers and organizes other objects. Elements in a collection are typically organized by the order o…

小结: 1. conflicting access 2.性能危害 优化 The cost of race detection varies by program, but for a typical program, memory usage may increase by 5-10x and execution time by 2-20x. 3.典型案例与修复 Accidentally shared variable // ParallelWrite writes data to file1…

3.3. Data TypesJava is a strongly typed language(强类型语音). This means that every variable must have a declared type(每个变量都必须声明类型). There are eight primitive types in Java(Java有8种原始类型). Four of them are integer types; two are floatingpoint number types;…