字符串操作、文件操作，英文词频统计预处理

本次作业要求来自于：https://edu.cnblogs.com/campus/gzcc/GZCC-16SE1/homework/2684

1.字符串操作：

• 解析身份证号：生日、性别、出生地等。

ID=input('请输入你的身份证号码：')

sex = '女' if int(ID[16]) % 2 == 0 else '男'
province = '广东省' if int(ID[0:2]) == 44 else 'XX省'
city = '梅州市' if int(ID[2:4]) == 14 else 'XX市'
county = '大山县' if int(ID[0:2]) == 89 else 'XX区/县'

print('{},出生于{}年{}月{}日,{}{}{}人'.format(sex,ID[6:10],ID[10:12],ID[12:14],province,city,county))

运行示例：

• 凯撒密码编码与解码

orign=input("请输入一句原文：")
pas=''
print('编码的密文为：',end='')
for i in range(0, len(orign)):
    if orign[i] in ['x', 'y', 'z']:
        pas += chr(ord(orign[i])-23)
    else:
        pas += chr(ord(orign[i])+3)
print(pas,end='')

print('\n解码得原文为：',end='')
for i in range(0, len(pas)):
    if pas[i] in ['a', 'b', 'c']:
        print(chr(ord(pas[i])+23),end='')
    else:
        print(chr(ord(pas[i])-3),end='')

运行示例：

• 网址观察与批量生成 

for i in range(2,6):
    url='http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html'.format(i)
    print(url)
import webbrowser as web
for i in range(2,6):
    web.open_new_tab('http://news.gzcc.cn/html/xiaoyuanxinwen/'+ str(i) +'.html')

运行示例：

 

2.英文词频统计预处理

# 一首歌词
cry_on_my_shoulder = '''
If the hero never comes to you
If you need someone you"re feeling blue
If you"re away from love and you"re alone
If you call your friends and nobody"s home
You can run awaybut you can"t hide
Through a storm and through a lonely night
Then I show you there"s a destiny
The best things in life
They"re free
But if you wanna cry
Cry on my shoulder
If you need someone who cares for you
If you"re feeling sad your heart gets colder
Yes I show you what real love can do
If your sky is grey oh let me know
There"s a place in heaven where we"ll go
If heaven is a million years away
Oh just call meand I make your day
When the nights are getting cold and blue
When the days are getting hard for you
I will always stay here by your side
I promise you I"ll never hide
But if you wanna cry
Cry on my shoulder
If you need someone who cares for you
If you"re feeling sad your heart gets colder
Yes I show you what real love can do
But if you wanna cry
Cry on my shoulder
If you need someone who cares for you
If you"re feeling sad your heart gets colder
Yes I show you what real love can do
What real love can do
What love can do
What real love can do
What love can do
What real love can do
'''

# 将所有大写转换为小写
cry_on_my_shoulder = cry_on_my_shoulder.lower()
#re表示待替换的符号
re='.?!:\"\'\n'
# 将所有其他做分隔符替换为空格
for i in re:
    cry_on_my_shoulder = cry_on_my_shoulder.replace(i,' ')
# 分隔出一个一个的单词
words_list=cry_on_my_shoulder.split()
print(words_list)
# 统计单词出现的次数
print('单词     个数')
total_words_times = 0
#存储不重复的单词
result = []
# 过滤重复的单词
for j in words_list:
    isRepeat=False
    for c in result:
        if j == c:
            isRepeat=True
    if isRepeat==False:
       result.append(j)
# 输出统计结果语句
for ch in result:
    total_words_times += words_list.count(ch)
    print('{:<10}{:<5}'.format(ch,words_list.count(ch)))
print('共有',total_words_times,'个单词')

View Code

运行示例：

 

3.文件操作与函数定义

# 加密函数
def encryption(file):
    f = open(file,'r',encoding='utf8')
    orign = f.read()
    f.close()
    password=''
    print('编码的密文为：',end='')
    for i in range(0, len(orign)):
        if orign[i] in ['x', 'y', 'z']:
            password += chr(ord(orign[i])-23)
        else:
            password += chr(ord(orign[i])+3)
    print(password)

# 解密函数
def deciphering(file):
    f = open(file,'r',encoding='utf8')
    password = f.read()
    f.close()
    orign=''
    print('解码得原文为：', end='')
    for i in range(0, len(password)):
        if password[i] in ['a', 'b', 'c']:
            orign += chr(ord(password[i]) + 23)
        else:
            orign += chr(ord(password[i]) - 3)
    print(orign)

# 读文本函数
def get_text(file):
    f = open(file, 'r', encoding='utf8')
    text = f.read()
    f.close()
    # 将所有大写转换为小写
    text = text.lower()
    #re表示待替换的符号
    re='.?!:\"\'\n'
    # 将所有其他做分隔符替换为空格
    for i in re:
        text = text.replace(i,' ')
    # 分隔出一个一个的单词
    words_list=text.split()
    print(words_list)
    # 统计单词出现的次数
    print('单词                个数')
    total_words_times = 0
    #存储不重复的单词
    result = []
    # 过滤重复的单词
    for j in words_list:
        isRepeat=False
        for c in result:
            if j == c:
                isRepeat=True
        if isRepeat==False:
           result.append(j)
    # 输出统计结果语句
    for ch in result:
        total_words_times += words_list.count(ch)
        print('{:<20}{:<8}'.format(ch,words_list.count(ch)))
    print('共有',total_words_times,'个单词')

# 调用函数
# 同一目录
encryption('orign.txt')
# 相对路径
deciphering("../files/password.txt")
# 绝对路径
get_text('D:\\学习\\myLoveSong.txt')

View Code

运行示例：

 

转载于:https://www.cnblogs.com/me-zzy/p/10508248.html