# SimpleDrawingToolsCppVer

**Repository Path**: luke-project-practice/simple-drawing-tools-cpp-ver

## Basic Information

- **Project Name**: SimpleDrawingToolsCppVer
- **Description**: 简单绘图工具 C++ 版本
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-01-05
- **Last Updated**: 2025-03-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: 软考试题

## README

# 原题

```mermaid
classDiagram
    class DrawCircle
    <<interface>> DrawCircle
    DrawCircle: +drawCircle(int radius, int x, int y) virtual void
    class GreenCircle
    GreenCircle: +drawCircle(int radius, int x, int y) void
    class RedCircle
    RedCircle: +drawCircle(int raduis, int x, int y) void
	DrawCircle<|..GreenCircle
	DrawCircle<|..RedCircle
	class Shape
	Shape: +DrawCircle *drawCircle
	Shape: +Shape()
	Shape: +draw() void
	class Circle
	Circle: +int x
	Circle: +int y
	Circle: +int radius
	Circle: +draw() void
	Circle: Circle()
	Shape<|--Circle
	Shape-->DrawCircle
```

# 结构更新

```mermaid
classDiagram
    class DrawCircle
    <<interface>> DrawCircle
    DrawCircle: +drawCircle(int radius, int x, int y) virtual void
    class GreenCircle
    GreenCircle: +drawCircle(int radius, int x, int y) void
    class RedCircle
    RedCircle: +drawCircle(int raduis, int x, int y) void
	DrawCircle<|..GreenCircle
	DrawCircle<|..RedCircle
	class Shape
	Shape: +draw() void
	class Circle
	Circle: +int x
	Circle: +int y
	Circle: +int radius
	Circle: +DrawCircle *drawCircle
	Circle: +draw() void
	Shape<|--Circle
	Circle-->DrawCircle
```

更改的原因是 DrawCircle 类对 Shape 类来说不是必须的。如果有一个 Square 类继承 Shape 类，那么它就不需要 drawCircle 指针。一个 Spuare 类拥有一个 drawCircle 指针既容易引发歧义，也在逻辑上不合理。