标签：image end src bre fill img ges 技术 turtle
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.shape(‘turtle‘) for i in range(5): turtle.forward(100) turtle.right(144)
b.画同心圆
import turtle for i in range(3): turtle.up() turtle.goto(0,-20*(i+1)) turtle.down() turtle.circle(20*(i+1))
c.画太阳花
import turtle turtle.color(‘yellow‘) turtle.begin_fill() while True: turtle.forward(250) turtle.left(150) if(abs(turtle.pos()))<1: break turtle.end_fill() turtle.done()
d.画五个五角星
import turtle turtle.color(‘yellow‘) turtle.bgcolor(‘red‘) turtle.fillcolor(‘yellow‘) def my_goto(x,y): turtle.up() turtle.goto(x,y) turtle.down() def my_draw5(r): turtle.begin_fill() for i in range(5): turtle.forward(r) turtle.right(144) turtle.end_fill() my_goto(-600,220) my_draw5(100) my_goto(-400,295) turtle.left(50) my_draw5(50) my_goto(-350,212) turtle.left(44) my_draw5(50) my_goto(-350,145) turtle.left(50) my_draw5(50) my_goto(-400,90) turtle.left(50) my_draw5(50) turtle.hideturtle() turtle.done()
e.画◇花瓣的太阳花。
import turtle turtle.fillcolor(‘yellow‘) turtle.pencolor(‘red‘) turtle.begin_fill() def draw_diamond(): for i in range(1,3): turtle.forward(100) turtle.right(45) turtle.forward(100) turtle.right(135) for i in range(1,37): draw_diamond() turtle.right(10) turtle.end_fill() tirtle.right(90) turtle.forward(300) turtle.hideturtle()
标签：image end src bre fill img ges 技术 turtle
原文地址：http://www.cnblogs.com/suxihong/p/7515433.html
