Python基础综合练习

Pycharm开发环境设置与熟悉。

练习基本输入输出:

print('你好,{}.'.format(name))

print(sys.argv)

库的使用方法:

import ...

from ... import ...

条件语句:

    if (abs(pos()))<1:

        break

循环语句:

for i in range(5):

while True:

函数定义:

def mygoto(x,y):

def drawjx(r):

综合练习:画一面五星红旗,将代码与运行截图发布博客交作业。

import turtle

def goto(x,y):
    turtle.up();
    turtle.goto(x,y);
    turtle.down;

def drawxwjx(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")

goto(-260,120)
turtle.begin_fill()
for i in range(5):
    turtle.forward(100)
    turtle.right(144)
turtle.end_fill()

for i in range(4):
    x = 1
    if i in [0,3]:
        x = 0
    goto(-120+x*45,180-i*45)
    turtle.left(15-i*15)
    drawxwjx(30)

turtle.hideturtle()

turtle.done()

字符串练习:

http://news.gzcc.cn/html/2017/xiaoyuanxinwen_1027/8443.html

取得校园新闻的编号

str='http://news.gzcc.cn/html/2017/xiaoyuanxinwen_1027/8443.html'

print(str[-9:-5])

https://docs.python.org/3/library/turtle.html

产生python文档的网址

addr1 = 'https://docs.python.org/3/library/'
addr2 = '.html'
addr = addr1 + 'turtle' +  addr2
print(addr)

http://news.gzcc.cn/html/xiaoyuanxinwen/4.html

产生校园新闻的一系列新闻页网址

for i in  range(2,10):
    print('http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html'.format(str(i)));

练习字符串内建函数:strip,lstrip,rstrip,split,count

用函数得到校园新闻编号

用函数统计一歌词中单词出现的次数

原文地址:https://www.cnblogs.com/wlh0329/p/8610995.html