Learn · ⁨学习⁩

AP Computer Science Principles · ⁨AP 计算机科学原理⁩

Choose a lesson to begin. · ⁨选择一门课程开始。⁩

1 Creative Development · ⁨创造性开发⁩ 0 / 4 Watch lesson · ⁨观看课程⁩

1.1 Collaboration · ⁨协作⁩ 1.2 Program Function and Purpose · ⁨程序的功能与目的⁩ 1.3 Program Design and Development · ⁨程序设计与开发⁩ 1.4 Identifying and Correcting Errors · ⁨识别与纠正错误⁩

2 Data · ⁨数据⁩ 0 / 4 Watch lesson · ⁨观看课程⁩

2.1 Binary Numbers · ⁨二进制数⁩ 2.2 Data Compression · ⁨数据压缩⁩ 2.3 Extracting Information from Data · ⁨从数据中提取信息⁩ 2.4 Using Programs with Data · ⁨用程序处理数据⁩

3 Algorithms and Programming · ⁨算法与编程⁩ 0 / 18 Watch lesson · ⁨观看课程⁩

3.1 Variables and Assignments · ⁨变量与赋值⁩ 3.2 Data Abstraction · ⁨数据抽象⁩ 3.3 Mathematical Expressions · ⁨数学表达式⁩ 3.4 Strings · ⁨字符串⁩ 3.5 Boolean Expressions · ⁨布尔表达式⁩ 3.6 Conditionals · ⁨条件语句⁩ 3.7 Nested Conditionals · ⁨嵌套条件语句⁩ 3.8 Iteration · ⁨迭代⁩ 3.9 Developing Algorithms · ⁨开发算法⁩ 3.10 Lists · ⁨列表⁩ 3.11 Binary Search · ⁨二分查找⁩ 3.12 Calling Procedures · ⁨调用过程⁩ 3.13 Developing Procedures · ⁨开发过程⁩ 3.14 Libraries · ⁨库⁩ 3.15 Random Values · ⁨随机值⁩ 3.16 Simulations · ⁨模拟⁩ 3.17 Algorithmic Efficiency · ⁨算法效率⁩ 3.18 Undecidable Problems · ⁨不可判定问题⁩

4 Computer Systems and Networks · ⁨计算机系统与网络⁩ 0 / 3 Watch lesson · ⁨观看课程⁩

4.1 The Internet · ⁨互联网⁩ 4.2 Fault Tolerance · ⁨容错⁩ 4.3 Parallel and Distributed Computing · ⁨并行与分布式计算⁩

5 Impact of Computing · ⁨计算的影响⁩ 0 / 6 Watch lesson · ⁨观看课程⁩

5.1 Beneficial and Harmful Effects · ⁨有益与有害的影响⁩ 5.2 Digital Divide · ⁨数字鸿沟⁩ 5.3 Computing Bias · ⁨计算偏见⁩ 5.4 Crowdsourcing · ⁨众包⁩ 5.5 Legal and Ethical Concerns · ⁨法律与伦理问题⁩ 5.6 Safe Computing · ⁨安全计算⁩