Python基础练习

画五角星：

setup(700,400,0,0)
>>> bgcolor("red")
>>>  hideturtle()
SyntaxError: unexpected indent
>>> hideturtle()
>>> up()
>>> def move(x):
    begin_fill()
    for i in range(5):
        forward(x)
        right(144)
    end_fill()

    
>>> goto(-300,100)
>>> fillcolor("yellow")
>>> move(100)
>>> goto(-145,140)
>>> move(30)
>>> goto(-65,90)
>>> move(30)
>>> goto(-65,20)
>>> move(30)
>>> goto(-145,-40)
>>> move(30)
>>> 

取得校园新闻的编号：

>>> a = "http://news.gzcc.cn/html/2017/xiaoyuanxinwen_1027/8443.html"
>>> a=a.rstrip(".html")
>>> a=a[-9:]
>>> print(a)
1027/8443
>>> 

产生python文档的网址

>>> def strCat(html,x):
    b=html[0:34]
    c=html[-5:]
    d=b+x+c
    print(d)

    
>>> strCat("https://docs.python.org/3/library/turtle.html","intro")

产生校园新闻的一系列新闻页网址：

>>> a = "http://news.gzcc.cn/html/xiaoyuanxinwen/4.html"
>>> b=a[0:40]
>>> c=a[-5:]
>>> for i in range(5):
    d=""
    d=b+str(i)
    d=d+c
    print(d)