实验8 Python库应用编程与体验
实验任务3
from turtle import * def square(size=50, rgb=(0.86,0.6,0)): '''绘制正方形 参数size指定边长 参数rgb指定画笔颜色 如果没有给参数,采用默认值 ''' pencolor(rgb) for i in range(4): fd(size) left(90) def main(): setup(800, 600) speed(0) n = 10 for i in range(n): square(80) left(360/n) hideturtle() done() if __name__ == '__main__': main()
实验任务4
from turtle import * setup(800, 600) pencolor('pink') n = 10 for i in range(n): # 绘制一片花瓣 for j in range(2): circle(80, 90) left(90) right(360/n) hideturtle() done()
实验任务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(5): fd(size) angle += 72 seth(angle) size += 5 hideturtle() done()
实验任务6
from turtle import * from random import random setup(800, 600) def rect(a=10, b=30, rgb=''): color(rgb) begin_fill() fd(a) left(90) fd(b) left(90) fd(a) left(90) fd(b) left(90) end_fill() penup() goto(-200, 0) pendown() for i in range(20): rgb = tuple(random() for j in range(3)) rect(20, 60, rgb) fd(20) hideturtle() done()