编程大风车怎么做教程

时间:2025-01-28 02:16:20 网络游戏

准备工作

安装turtle模块

```python

import turtle

```

第一步:设置画布和画笔

```python

创建一个绘图窗口

screen = turtle.Screen()

设置画笔的速度和粗细

pen = turtle.Turtle()

pen.speed(1)

pen.pensize(3)

```

第二步:绘制风车叶片

```python

def draw_sector(col1, col2):

turtle.color(col1, col1)

turtle.circle(30, 90)

turtle.right(90)

turtle.begin_fill()

turtle.fd(120)

turtle.right(90)

turtle.fd(150)

turtle.right(135)

turtle.fd(150 * (1.414) - 30)

turtle.end_fill()

turtle.color(col2, col2)

turtle.begin_fill()

turtle.right(90)

turtle.circle(30, 90)

turtle.right(90)

turtle.fd(75 * 1.414 - 30)

turtle.right(90)

turtle.fd(150 / 1.414)

turtle.right(135)

turtle.fd(120)

turtle.end_fill()

turtle.right(90)

绘制四个扇叶

for i in range(4):

draw_sector("red", "blue")

turtle.right(90)

```

第三步:让风车转起来

```python

每次旋转一个小角度

angle = 0.1

while angle < 2 * np.pi:

pen.clear()

pen.color("black")

pen.begin_fill()

for _ in range(4):

draw_sector("red", "blue")

pen.right(90)

pen.end_fill()

pen.right(angle)

angle += 0.1

```

第四步:给风车中心加点装饰

```python

在风车中心加一个小圆点

pen.penup()

pen.goto(0, 50)

pen.pendown()

pen.color("black")

pen.circle(5)

```

完整代码