实验8
task 3
from turtle import* def square(size=50,rgb='orange'): pencolor(rgb) for i in range(4): fd(size) left(90) def main(): setup (800,600) speed(0) for i in range(10): square(80) left(36) hideturtle() done() if __name__=='__main__': main()
task 4
from turtle import* setup(800,600) pencolor('pink') for i in range(10): for j in range(2): circle(80,90) left(90) right(36) hideturtle() done()
task 5
from turtle import* setup(800,600) bgcolor('black') pencolor('white') speed(0) angle=0 size=2 n=10 for i in range(n): for j in range(4): fd(size) angle+=72 seth(angle) size+=5 hideturtle() done()
task 6
from turtle import * from random import random def moveto(x,y): penup() goto(x,y) pendown() setup(800, 600) def rect(wide,height,rgb='red'): rgb = tuple(random() for i in range(3)) color(rgb) for i in range(2): begin_fill() fd(wide) left(90) fd(height) end_fill() left(90) for i in range(20): moveto((9 - i) * 10, 0) rect(10, 20) hideturtle() done()