python用turtle画雪花飘落
时间: 2023-04-23 19:03:53 浏览: 210
可以使用Python中的turtle库来画出雪花飘落的效果。具体实现方法如下:
1. 导入turtle库
```python
import turtle
```
2. 设置画布大小和背景颜色
```python
turtle.setup(800, 600)
turtle.bgcolor("black")
```
3. 定义一个函数,用于画出雪花的形状
```python
def snowflake(size):
for i in range(6):
turtle.forward(size)
turtle.backward(size)
turtle.right(60)
```
4. 定义一个函数,用于画出雪花飘落的动画效果
```python
def snowfall():
turtle.penup()
turtle.goto(-350, 250)
turtle.pendown()
turtle.color("white")
size = 10
while True:
snowflake(size)
turtle.right(5)
size += 1
if turtle.ycor() < -250:
break
turtle.penup()
turtle.right(180)
turtle.forward(size * 2)
turtle.right(180)
turtle.pendown()
```
5. 调用snowfall()函数,开始画出雪花飘落的动画效果
```python
snowfall()
```
完整代码如下:
```python
import turtle
def snowflake(size):
for i in range(6):
turtle.forward(size)
turtle.backward(size)
turtle.right(60)
def snowfall():
turtle.penup()
turtle.goto(-350, 250)
turtle.pendown()
turtle.color("white")
size = 10
while True:
snowflake(size)
turtle.right(5)
size += 1
if turtle.ycor() < -250:
break
turtle.penup()
turtle.right(180)
turtle.forward(size * 2)
turtle.right(180)
turtle.pendown()
turtle.setup(800, 600)
turtle.bgcolor("black")
snowfall()
turtle.done()
```
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