1.注意标准库的两种导入与使用方式,建议大家采用<库名>.<函数名>的方式。2.对前面的代码进行优化,用for,while,if,def实现
A.画五角星
>>> import turtle
>>> turtle.color('yellow')
>>> turtle.bgcolor('red')
>>> turtle.hideturtle()
>>> turtle.beginfill()
Traceback (most recent call last):
File "<pyshell#4>", line 1, in <module>
turtle.beginfill()
AttributeError: module 'turtle' has no attribute 'beginfill'
>>> turtle.begin_fill()
>>> turtle.forward(99)
>>> turtle.right(144)
>>> turtle.forward(99)
>>> turtle.right(144)
>>> turtle.forward(99)
>>> turtle.right(144)
>>> turtle.forward(99)
>>> turtle.right(144)
>>> turtle.forward(99)
>>> turtle.end_fill()
B.画同心圆
import turtle
for i in range(5):
turtle.up()
turtle.goto(0,-25*(i+1))
turtle.down()
turtle.circle(25*(i+1))
C.画太阳花
import turtle
turtle.pensize(3)
turtle.pencolor("red")
turtle.fillcolor("yellow")
turtle.begin_fill()
while True:
turtle.forward(300)
turtle.left(150)
if(abs(turtle.pos()))<1:
break
turtle.end_fill()
turtle.hideturtle()
D.画五个五角星
import turtle
turtle.bgcolor('red')
def m_goto(x,y):
turtle.up()
turtle.goto(x,y)
turtle.down()
def m_draw(r):
turtle.pencolor('yellow')
turtle.fillcolor('yellow')
turtle.begin_fill()
for i in range(5):
turtle.forward(r)
turtle.right(144)
turtle.end_fill()
m_goto(-350,180)
m_draw(150)
m_goto(-175,250)
turtle.left(50)
m_draw(50)
m_goto(-100,173)
turtle.left(44)
m_draw(50)
m_goto(-70,80)
turtle.left(50)
m_draw(50)
m_goto(-130,50)
turtle.left(50)
m_draw(50)
turtle.hideturtle()
turtle.done()
E.画菱形花瓣的太阳花
import turtle
turtle.speed(12)
turtle.fillcolor("yellow")
turtle.pencolor("red")
turtle.begin_fill()
def draw_leng():
for i in range(1,3):
turtle.forward(75)
turtle.right(45)
turtle.forward(75)
turtle.right(135)
for i in range(1,37):
draw_leng()
turtle.right(10)
turtle.end_fill()
turtle.right(90)
turtle.forward(300)
turtle.hideturtle()