turtle:海龟先生的意思。
Python老是用动物的名字!
首先要引入呀!
不引入当然是不可以用的呀!
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turtle.forward(100):效果图
鼠标前进100步!
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后退的话,鼠标就又回来啦!
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当然也可以向右向左!鼠标会改变角度!
向右旋转多少度,向左旋转多少度呀之类的!
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turtle.left(90):这一下,又旋转回来啦!
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鼠标走过的途径不会擦除,会一直保留着!
画出了一个矩形,这是通过变量来控制的。也可以通过循环来控制!
import turtle
i = 0
a = 6
b = 45
while True:
if i > 33:
break
turtle.forward(a)
turtle.right(b)
turtle.forward(a)
turtle.left(b)
i+=1
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来画一个螺旋形状的图形!
改变一下角度就好啦!
import turtle
i = 0
a = 6
b = 90
while True:
if i > 12:
break
turtle.forward(a)
turtle.right(b)
turtle.forward(a)
i+=1
a += 10
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画出圆:
利用距离,角度。一次增加1.来实现!
import turtle
i = 0
while i < 360:
turtle.forward(1)
turtle.right(1)
i += 1
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几条边组成的圆,你来控制!
代码:
import turtle
i = int(input('你想要几边来密封呢?'))
angle = 360.0 / i
distance = 1000.0 / i
for s in range(i):
turtle.forward(distance)
turtle.right(angle)
turtle.done()
注意,数字格式:
i需要是int类型数据。要不然无法转换!
除数最后得到的是浮点数!
i = int(input('你想要几边来密封呢?'))
angle = 360.0 / i
distance = 1000.0 / i
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进行颜色填充:1
目前,我掌握的所填充的必须是一个封闭图形。一下子出来完的那种!
代码:
import turtle
i = int(input('你想要几边来密封呢?'))
angle = 360.0 / i
distance = 1000.0 / i
turtle.begin_fill()
turtle.color("yellow")
turtle.circle(distance,steps=i)
turtle.end_fill()
turtle.done()
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也可以通过调用函数来画图形!
代码:
import turtle
def drawShape(sides,length):
angle = 360.0/sides
for side in range(sides):
turtle.forward(length)
turtle.right(angle)
def moveTurtle(x,y):
turtle.penup()
turtle.goto(x,y)
turtle.pendown()
drawShape(4,60)
moveTurtle(110,30)
drawShape(3,90)
turtle.done()
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随机生成图像:
代码:
shape决定绘制图形形状:
矩形
三角形
圆
import turtle
import random
def drawShape(sides,length):
angle = 360.0/sides
for side in range(sides):
turtle.forward(length)
turtle.right(angle)
def moveTurtle(x,y):
turtle.penup()
turtle.goto(x,y)
turtle.pendown()
def drawSquare(length):
drawShape(4,length)
def drawTriangle(length):
drawShape(3,length)
def drawCircle(length):
drawShape(360,length)
def drawRandom():
x = random.randrange(-200,200)
y = random.randrange(-200,200)
length = random.randrange(75)
shape = random.randrange(1,4)
moveTurtle(x,y)
if shape == 1:
drawSquare(length)
elif shape == 2:
drawTriangle(length)
elif shape == 3:
length = length % 4
drawCircle(length)
for shape in range(100):
drawRandom()
turtle.done()
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