turtle用循环和分支语句画化学结构简式
时间: 2024-03-22 07:39:27 浏览: 117
化学结构简式是一种用于表示有机分子结构的简化方式,常用于化学式中。在Turtle库中,我们可以使用循环和分支语句来绘制化学结构简式。
以下是一个使用Turtle库绘制甲酸分子简式的示例,其中包括循环和分支语句:
```
import turtle
pen = turtle.Turtle()
# 设置画布大小和背景颜色
turtle.setup(800, 600)
turtle.bgcolor("white")
# 绘制甲酸分子结构
pen.pencolor("black")
pen.pensize(3)
# 绘制甲酸分子的主干
pen.penup()
pen.goto(-150, 0)
pen.pendown()
pen.setheading(0)
pen.forward(100)
pen.setheading(135)
pen.forward(50)
pen.setheading(225)
pen.forward(50)
pen.setheading(0)
pen.forward(100)
# 绘制甲酸分子的官能团
pen.penup()
pen.goto(-150, 50)
pen.pendown()
pen.setheading(0)
pen.circle(20)
# 根据原子类型来设置颜色
atom_type = "C"
if atom_type == "C":
pen.fillcolor("gray")
else:
pen.fillcolor("red")
pen.begin_fill()
pen.circle(10)
pen.end_fill()
# 完成绘制
turtle.done()
```
这段代码可以绘制一个甲酸分子的简式结构,其中包括一个主干和一个甲酸官能团。在绘制过程中,我们使用了循环和分支语句来控制Turtle对象的移动和绘制,同时根据原子的类型来设置不同的颜色。
阅读全文
相关推荐


















