Building Abstractions with Procedures
Include(/SICP的Python实现1.1) Include(/SICP的Python实现1.2) Include(/SICP的Python实现1.3)
Building Abstractions with Data
Modularity, Objects, and State
Metalinguistic Abstraction
Include(/SICP的Python实现1.1) Include(/SICP的Python实现1.2) Include(/SICP的Python实现1.3)