标签：tle pre 实现 bre col 函数 方式 begin tool
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.begin_fill()
for i in range(5):
turtle.forward(120)
turtle.right(144)
turtle.end_fill()
turtle.done()
b.画同心圆
import turtle
for i in range(5):
turtle.up()
turtle.goto(0,-20*(i+1))
turtle.down()
turtle.circle(20*(i+1))
c.画太阳花
from turtle import *
speed(20)
shape(‘turtle‘)
color(‘green‘,‘yellow‘)
begin_fill()
while True:
forward(200)
right(170)
if(abs(pos()))<1:
break
end_fill()
hideturtle()
done()
d.画五个五角星
import turtle
turtle.speed(20)
turtle.color(‘yellow‘)
turtle.bgcolor(‘red‘)
turtle.fillcolor(‘yellow‘)
def wu_goto(x,y):
turtle.up()
turtle.goto(x,y)
turtle.down()
def hong_draw5(r):
turtle.begin_fill()
for i in range(5):
turtle.forward(r)
turtle.right(144)
turtle.end_fill()
wu_goto(-350,180)
hong_draw5(150)
turtle.left(50)
wu_goto(-150,250)
hong_draw5(50)
turtle.left(50)
wu_goto(-100,170)
hong_draw5(50)
turtle.left(45)
wu_goto(-80,85)
hong_draw5(50)
turtle.left(50)
wu_goto(-130,35)
hong_draw5(50)
turtle.left(50)
turtle.hideturtle()
turtle.done()
e.画◇花瓣的太阳花
import turtle
turtle.speed(100)
turtle.color(‘green‘)
turtle.fillcolor(‘red‘)
turtle.begin_fill()
for i in range(1,37):
for i in range(1,3):
turtle.forward(100)
turtle.right(45)
turtle.forward(100)
turtle.right(135)
turtle.left(20)
turtle.end_fill()
turtle.right(90)
turtle.forward(400)
turtle.hideturtle()
标签：tle pre 实现 bre col 函数 方式 begin tool
原文地址：http://www.cnblogs.com/xyjie/p/7517889.html
