摘要：
Logo语言，作为一种图形编程语言，以其简单易学的特点，深受教育者和编程爱好者的喜爱。本文将围绕Logo语言编程，通过一系列示例，展示如何使用Logo语言绘制动物鸟的图形，旨在激发读者对编程和图形艺术的兴趣。
关键词：Logo语言，图形编程，动物鸟，编程示例
一、
Logo语言，由美国麻省理工学院教授西摩·帕普特（Seymour Papert）于1967年发明，是一种基于turtle图形编程环境的语言。它通过控制一个名为turtle的虚拟小海龟在屏幕上移动，绘制出各种图形。Logo语言以其直观、简单和富有创意的特点，成为了学习编程和图形设计的理想工具。
二、Logo语言基础
在开始绘制动物鸟之前，我们需要了解一些Logo语言的基础知识。
1. turtle模块：Logo语言的核心模块，用于控制turtle小海龟的移动和绘图。
2. 基本命令：
- `fd`：前进
- `bk`：后退
- `lt`：左转
- `rt`：右转
- `pu`：提笔
- `pd`：落笔
- `home`：回到初始位置
3. 变量：Logo语言支持变量，可以存储数值和字符串。
4. 循环：Logo语言支持循环结构，如`repeat`和`while`。
三、绘制动物鸟的示例
以下是一些使用Logo语言绘制动物鸟的示例：
1. 鸟类轮廓
```logo
; 鸟类轮廓
pu
setpos -100 -100
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lt
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