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。
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_xinwen='http://news.gzcc.cn/html/2017/xiaoyuanxinwen_1027/8443.html' print(str_xinwen[-14:-5])
https://docs.python.org/3/library/turtle.html
产生python文档的网址
url="https://docs.python.org/3/library/turtle.html"
print(url.replace('python','turtle'))
http://news.gzcc.cn/html/xiaoyuanxinwen/4.html
产生校园新闻的一系列新闻页网址
str="http://news.gzcc.cn/html/2017/xiaoyuanxinwen_1027/8443.html" print(str[-5:15])
练习字符串内建函数：strip, lstrip, rstrip, split, count，replace
用函数得到校园新闻编号
#广州商学院的新闻网址为url="http://news.gzcc.cn/html/2018/xiaoyuanxinwen_0308/9005.html"
url="http://news.gzcc.cn/html/2018/xiaoyuanxinwen_0308/9005.html"
print(url.split('_',2)[1].rstrip('.html'))
用函数统计一歌词(文章、小说)中单词出现的次数，替换标点符号为空格，用空格进行分词。
sing='''You were my everythingthis goes out to someone that was
once the most important person in my life
i didn't realize it at the time
i can't forgive myself for the way i treated you so
i don't really expect you to either
it's just... i don't even know
just listen...
you're the one that i want, the one that i need
the one that i gotta have just to succeed
when i first saw you, i knew it was real
i'm sorry about the pain i made you feel
that wasn't me; let me show you the way
i looked for the sun, but it's raining today
i remember when i first looked into your eyes
it was like god was there, heaven in the skies
i wore a disguise 'cause i didn't want to get hurt
but i didn't know i made everything worse
you told me we were crazy in love
but you didn't care when push came to shove
if you loved me as much as you said you did
then you wouldn't have hurt me like i ain't shit
now you pushed me away like you never even knew me
i loved you with my heart, really and truly
i guess you forgot about the times that we shared
when i would run my fingers through your hair
late nights, just holding you in my arms
i don't know how i could do you so wrong
i really wanna show you i really need to hold you
i really wanna know you like no one could else know you
you're number one, always in my heart
and now i can't believe that our love is torn apart
refrain:i need you and
i miss you and
i want you and
i love you 'cause
i wanna hold you,
i wanna kiss you
you were my everything
and i really miss you (x2)
i knew you gonna sit and play this with your new man
and then sit and laugh as you're holding his hand
the thought of that just shatters my heart
it breaks in my soul and it tears me apart
at times we was off i was scared to show you
now i wanna hold you until i can't hold you
without you, everything seems strange
your name is forever planted in my brain
damn it, i'm insane,
take away the pain
take away the hurt
baby, we can make it work
what about when you
looked into my eyes
told me you loved me
as you would hugged me
i guess everything you said was a lie
i think about it, it brings tears to my eyes
now i'm not even a thought in your mind
i can see clearly, my love is not blind
refrain
i just wish everything could have turned out differently
i had a special feeling about you
i thought maybe you did too
you would understand, but...
no matter what, you'll always be in my heart
you'll always be my baby
our first day, it seemed so magical
i remember all the time that i had with you
remember when you first came to my house?
you looked like an angel wearing that blouse
we hit it off, i knew it was real
but now i can't take all the pain that i feel
reach in your heart, i know i'm still there
i don't wanna hear that you no longer care
remember the times? remember when we kissed?
i didn't think you would ever do me like this
i didn't think you'd wanna see me depressed
i thought you'd be there for me, this i confess
you said you were my best friend, was that a lie?
now i'm nothing to you, you're with another guy
i tried, i tried, i tried, and i'm trying
now on the inside it feels like i'm dying
refrain
[talking] and i do miss you
i just thought we were meant to be
i guess now, we'll never know
the only thing i want is for you to be happy
whether it be with me, or without me
i just want you to be happy '''
print(sing.count('me')) #统计该歌曲出现me的次数
print(sing.replace(" ",",")) #将空格用"，"代替
print(sing.split()) #使用空格将每个单词分开
