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()