红旗

五星红旗
import turtle
def goto(x,y):
    turtle.up()
    turtle.goto(x,y)
    turtle.down()

def draw(x):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(x)
        turtle.right(144)
    turtle.end_fill()


turtle.setup(600,400,0,0)
turtle.color('yellow')
turtle.bgcolor('red')
turtle.fillcolor('yellow')

goto(-250,75)
# turtle.up()
# turtle.goto(-250,75)
# turtle.down()

draw(100)
# turtle.begin_fill()
# for i in range(5):
#     turtle.forward(100)
#     turtle.right(144)
# turtle.end_fill()

goto(-100,175)
# turtle.up()
# turtle.goto(-100,150)
# turtle.down()
turtle.right(6)

draw(50)
# turtle.begin_fill()
# for i in range(5):
#     turtle.forward(50)
#     turtle.right(144)
# turtle.end_fill()

goto(-100,-25)
draw(50)

goto(-70,108)

draw(50)

goto(-70,42)
turtle.left(2)
draw(50)

turtle.done()

字符串练习

html = 'http://news.gzcc.cn/html/2018/xiaoyuanxinwen_0314/9024.html'
print(html[-14:-5], '\n ----------------------')

html_end = '.html'
html1 = 'https://docs.python.org/dev/library/'
a = ['string', 'sys', 'turtle', 'os']
for g in a:
    html = html1 + str(g) + html_end
    print(html)
print('\n ----------------------')

new_html = 'http://news.gzcc.cn/html/2018/xiaoyuanxinwen/'
new=new_html+'index'+html_end
print(new)
for i in range(2, 229):
    new = new_html + str(i) + html_end
    print(new)