实验8 python库应用编程与体验
task.3
from turtle import* def square(size=50,rgb='orange'): '''绘制rgb正方形 参数size指定边长 参数指定画笔颜色 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()
task.4
from turtle import* setup(800,600) pencolor('pink') n=10 for i in range(n): #绘制一朵花瓣 for j in range(2): circle(80,90) left(90) right(360/n) 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(5): fd(size) angle+=360/5 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) wide=10 for i in range(20): moveto((9-i)*wide,0) rect(10,20) hideturtle() done()