graph TB
    subgraph "Phase 1: Python 基础 (Day 1-15)"
        A1[变量与数据类型]
        A2[字符串]
        A3[列表/元组/字典/集合]
        A4[循环与条件]
        A5[函数与作用域]
        A6[模块与包]
    end
    
    subgraph "Phase 2: 核心编程 (Day 16-30)"
        B1[文件 I/O]
        B2[异常处理]
        B3[推导式]
        B4[Lambda 与函数式]
        B5[迭代器与生成器]
        B6[装饰器]
        B7[上下文管理器]
        B8[数据结构综合]
        B9[算法入门]
    end
    
    subgraph "Phase 3: OOP (Day 31-45)"
        C1[类与对象]
        C2[继承与多态]
        C3[魔术方法]
        C4[设计模式]
        C5[SOLID 原则]
        C6[dataclass]
    end
    
    subgraph "Phase 4: 高阶特性 (Day 46-60)"
        D1[元类]
        D2[描述符]
        D3[内存管理]
        D4[并发编程]
        D5[C 扩展]
    end
    
    subgraph "Phase 5: 工程实践 (Day 61-75)"
        E1[Web 开发]
        E2[数据库]
        E3[测试]
        E4[日志]
        E5[包管理]
    end
    
    subgraph "Phase 6-7: 实战与进阶 (Day 76-100)"
        F1[爬虫]
        F2[数据分析]
        F3[性能优化]
        F4[Python 内部机制]
    end
    
    A1 --> A2 --> A3 --> A4 --> A5 --> A6
    A6 --> B1
    B1 --> B2 --> B3 --> B4 --> B5 --> B6 --> B7
    B7 --> B8 --> B9
    B9 --> C1
    C1 --> C2 --> C3 --> C4 --> C5 --> C6
    C6 --> D1
    D1 --> D2 --> D3 --> D4 --> D5
    D5 --> E1
    E1 --> E2 --> E3 --> E4 --> E5
    E5 --> F1
    F1 --> F2 --> F3 --> F4

graph LR
    subgraph "迭代器协议"
        I1[__iter__] --> I2[__next__]
    end
    
    subgraph "上下文管理器协议"
        C1[__enter__] --> C2[__exit__]
    end
    
    subgraph "魔术方法体系"
        M1[属性访问]
        M2[运算符重载]
        M3[字符串表示]
        M4[比较运算]
    end
    
    I1 -.-> |"生成器实现"| G1[yield]
    C1 -.-> |"contextlib 实现"| CT1[contextmanager]
    
    M1 --> MD1[描述符]
    M2 --> MD2[运算符方法]
    M3 --> MD3[__repr__/__str__]
    M4 --> MD4[__eq__/__lt__ 等]
    
    classDef iterator fill:#e1f5fe
    classDef context fill:#f3e5f5
    classDef magic fill:#fff3e0
    
    class I1,I2,G1 iterator
    class C1,C2,CT1 context
    class M1,M2,M3,M4,MD1,MD2,MD3,MD4 magic

graph TD
    START[选择并发模型] --> Q1{任务类型?}
    
    Q1 -->|IO 密集型| IO[IO 密集型]
    Q1 -->|CPU 密集型| CPU[CPU 密集型]
    Q1 -->|混合型| MIX[混合型]
    
    IO --> Q2{并发度要求?}
    Q2 -->|高并发 >100| ASYNC[asyncio]
    Q2 -->|中等 <100| THREAD[多线程]
    Q2 -->|简单场景| SEQ[顺序 + 异步]
    
    CPU --> Q3{需要共享状态?}
    Q3 -->|是| PROC[多进程 + 共享内存]
    Q3 -->|否| PROC2[多进程]
    
    MIX --> ASYNC2[asyncio + ProcessPool]
    
    classDef decision fill:#fff3e0
    classDef answer fill:#e8f5e9
    
    class Q1,Q2,Q3 decision
    class ASYNC,THREAD,SEQ,PROC,PROC2,ASYNC2 answer

graph TD
    subgraph "必须先学"
        P1[基础语法] --> P2[函数]
        P2 --> P3[数据结构]
        P3 --> P4[异常处理]
    end
    
    subgraph "可以并行学"
        P4 --> A[文件 I/O]
        P4 --> B[模块系统]
        P4 --> C[推导式]
    end
    
    subgraph "必须顺序学"
        A --> D[装饰器]
        B --> D
        D --> E[上下文管理器]
        E --> F[迭代器/生成器]
    end
    
    subgraph "OOP 独立路线"
        G[类与对象] --> H[继承多态]
        H --> I[设计模式]
        I --> J[SOLID]
    end
    
    subgraph "高级特性路线"
        F --> K[元类]
        K --> L[描述符]
        L --> M[内存管理]
    end
    
    subgraph "工程实践路线"
        J --> N[测试]
        N --> O[Web 开发]
        O --> P[数据库]
    end
    
    F --> Q[并发编程]
    M --> R[性能优化]
    
    P --> S[实战项目]
    Q --> S
    R --> S

graph LR
    subgraph "装饰器生态"
        DEC[装饰器] --> CLO[闭包]
        DEC --> HOF[高阶函数]
        DEC --> FUN[函数式编程]
    end
    
    subgraph "迭代器生态"
        ITER[迭代器] --> GEN[生成器]
        ITER --> FOR[for 循环]
        GEN --> LAZY[惰性计算]
    end
    
    subgraph "上下文生态"
        CTX[上下文管理器] --> WITH[with 语句]
        CTX --> EXC[异常处理]
        CTX --> RAII[资源管理]
    end
    
    subgraph "OOP 生态"
        OOP[类] --> INH[继承]
        OOP --> POLY[多态]
        OOP --> ENC[封装]
        OOP --> DES[描述符]
        OOP --> META[元类]
    end
    
    CLO -.-> GEN
    HOF -.-> FUN
    GEN -.-> LAZY
    CTX -.-> EXC
    DES -.-> META
    
    classDef decorator fill:#e1f5fe
    classDef iterator fill:#e8f5e9
    classDef context fill:#f3e5f5
    classDef oop fill:#fff3e0
    
    class DEC,CLO,HOF,FUN decorator
    class ITER,GEN,FOR,LAZY iterator
    class CTX,WITH,EXC,RAII context
    class OOP,INH,POLY,ENC,DES,META oop