自己使用总结Python程序代码片段

#encoding=utf-8 
#计算 1-2+3-4..+199-200值 
#1+3+5+7+...199 
#-2-4-6...-200 
sum1  = 0 
sum2  = 0 
for i in range(1,200,2):      #计算1+3+5+7...199 
    sum1 +=i 
print sum1 
 
 
for i in range(-200,0,2):    #计算-2+(-4)+(-6)...+(-200) 
    sum2 +=i 
print sum2 
 
 
print "The total of 1-2+3-4..+199-200 is: ", sum1+sum2 

#encoding=utf-8 
#Python 2.7.4 
#Purpose:  将文件1.txt,2.txt中相同的内容放到3.txt中; 
f1 = open("1.txt","r+") 
f2 = open("2.txt","r+") 
f3 = open("3.txt","w+") 
 
 
all1 = f1.readlines()    #先拿文件1中所有行取出 
all2 = f2.readlines()    #再拿文件2中所有行取出 
f1.close() 
f2.close() 
 
 
for l1 in all1: 
    for l2 in all2: 
        if l1.strip()==l2.strip():  #比较行中内容是否一样 
            f3.write(l2) 
    else: 
        continue 
else: 
    pass 
         
print "#"*40 
f3.close() 

Python 
Perl 
Java 
Shell 

file1 = file('test.txt','r') 
list1 = []  #用一个空列表用于存放每行的内容 
while True: 
    line = file1.readline() 
    list1.append(line.strip()) 
    if len(line) == 0: 
        break 
for l in list1[::-1]: #反向遍历，然后依次读取出来 
    print l 
 
file1.close() 

Shell 
Java 
Perl 
Python 

01.Python 3.0:  #print是一个函数 
02.Python 3.0:  #文本文件强制二进制编码 
#coding = gbk     #中文编码 
 
f_r = open('test.txt')     #打开要处理文件 
f_w = open('file.txt','w') #创建要添加文件 
 
i = 0    #加前缀标志位 
 
while True: 
    i += 1 
    line = f_r.readline() 
    if not line: 
        break 
    f_w.write('%02d'%(i) + '.Python 3.0:  #' + line)#字符串格式化及拼接技巧 
 
f_r.close()   #关闭打开的文件句柄 
f_w.close()   

#coding = gbk 
'''''
下面code.txt文件中内容，将
01 CN Chinese
02 IN India
03 HK HongKang
04 JP Japan
05 DE Germany
06 US United States of America
要文件的内容，每一行文件，写到一个文件，且文件名前面两个字段，如
文件名为:01_CN_Chinese.txt
文中内容:01 CN Chinese
知识要点:
1. ''.join 和 split函数
2. 字符的联合
3. with语句,open文件
4. 遍历数组
5. 切片操作
''' 
postfix = '.txt'                     #设置后缀 
 
with open('test.txt') as myfile:     #with语句打开文件为myfile 
    while True:                      #while循环拿文件读出来 
        lines = myfile.readlines()   #拿所有的行一次性读取到列表中 
        if not lines: break          #没有则中断 
        for line in lines:           #遍历列表 
            file_out = str('_'.join(line.split()[:])) + postfix #得到01_CN_Chinese.txt文件名 
            open(file_out,'w').write(line)                      #write(line),将没行的文件写入新文件中 

#coding = gbk 
'''''
#最终实现下面的过程
foos = [1.0, 2.0, 3.0, 4.0, 5.0]
bars = [100, 200, 300, 400, 500]
 
1.0 [200, 300, 400, 500]
2.0 [100, 300, 400, 500]
3.0 [100, 200, 400, 500]
4.0 [100, 200, 300, 500]
5.0 [100, 200, 300, 400]
#知识点
1. map函数的理解
2. 关键是切片函数的应用
 
''' 
 
foos = [1.0, 2.0, 3.0, 4.0, 5.0] 
bars = [100, 200, 300, 400, 500] 
 
def func(foo): 
    index = foos.index(foo) #foo在foos中的索引，拿她取出来 
    print foo,bars[:][0:index] + bars[:][index+1:] 
    #该索引同样在bars中相同位置，在切片的时候拿它取出，并拼接这个切片 
    #大功告成！ 
 
print map(func,foos) 

def factorial(n): 
    return reduce(lambda x,y: x* y, range(1,n+1))#求6!
 
print reduce(lambda x,y: x + y, [factorial(i) for i in range(1,6)]) #求6! + 5! + 4! + 3! + 2! + 1!

import sys 
 
helpinfo= '''''\
This program prints files to the standard output.
Any number of files can be specified.
Options include:
--[version|VERSION|V|v]: Prints the version number
--[help   |HELP   |H|h]: Display the help
''' 
 
def readfile(filename): 
    try: 
        f = open(filename) 
        while True: 
            line = f.readline() 
            if not line: 
                break 
            print line, 
    except: 
        print 'some error here' 
 
if len(sys.argv) < 2: 
    print 'No action is needed!' 
    sys.exit() 
 
if sys.argv[1].startswith('--'): 
    option = sys.argv[1][2:] 
    if option in ['version','v','V','VERSION']: 
        print 'Version 1.0' 
    elif option in ['h','H','help','HELP']: 
        print helpinfo 
    else: 
        print 'Unknown option.' 
    sys.exit() 
     
else: 
    for filename in sys.argv[1:]: 
        readfile(filename) 

def powersum(power,*args): 
    '''''Print each argument's power''' 
    total = 0 
    for item in args: 
        total += pow(item,power) 
    return total 
 
print powersum(2,3,4)  # (3**2) + (4**2) 
print powersum(2,10)   # 10**2 
print powersum(2)      # 0**2 

def repeater(n): 
    print n 
    return lambda s: s*n 
 
twice = repeater(2) 
 
print twice('Hello') 
print twice(5) 

#!/usr/bin/env python 
 
import os,time 
source     = ['/home/test/C','/home/test/shell']             #源文件目录 
target_dir = '/home/test/python'                             #目标文件目录 
 
today      = target_dir + time.strftime('%Y%m%d')            # 
now        = time.strftime('%H%M%S') 
 
if not os.path.exists(today):                                 #判断目录是否存在 
  os.mkdir(today)                                             #不存在的话则新建 
  print 'Successfully created directory', today 
 
target     = today + os.sep + now + '.zip'                    #target文件格式 
zip_cmd    = "zip -qr '%s' %s" % (target, ' '.join(source))   #-q:安静模式 -r递归模式 
#等价于 zip -qr /home/test/python20141202/142151.zip /home/test/C /home/test/shell 
if os.system(zip_cmd) == 0:     #判断命令是否成功执行，成功执行，返回0 
  print 'Successful back to:', target 
else:                           #失败的话，打印信息 
  print 'Backup FAILED.' 
 

#!/usr/bin/env python 
 
import os,time 
 
source     = ['/home/test/C','/home/test/shell'] 
target_dir = '/home/test/python' 
 
today      = target_dir + time.strftime('%Y%m%d') 
now        = time.strftime('%H%M%S') 
 
comment    = raw_input('Enter comments here-->')   #要输入的comment 
if len(comment) == 0:                              #如果没有comment 
  target = today + os.sep + now + '.zip'           #按照上面的操作执行 
else: 
  target = today + os.sep + now + '_' + comment.replace(' ','_') + '.zip' 
#如果有comment,  
 
if not os.path.exists(today): 
  os.mkdir(today) 
  print 'The backup directory created!', today 
 
zip_command = "zip -qr '%s' %s" % (target, ' '.join(source)) 
 
if os.system(zip_command) == 0: 
  print 'Scuccessful backup to', target 
else: 
  print 'The backup FAILED' 
 

# python backup_ver4.py
Enter comments here-->add new example
The backup directory created! /home/test/python20141202
Scuccessful backup to /home/test/python20141202/145130_add_new_example.zip

def func(B): 
    I = 0 
    while B: 
        I = I * 2 + (ord(B[0])-ord('0')) 
        B = B[1:] 
    return I 
 
b = raw_input('Enter binary here:') 
 
print func(b) 

def find_duplicate(lst): 
    tmp = []                               #临时变量，存放排除后的列表 
    for item in lst:             
        if not item in tmp:                #将不在tmp变量找出 
            tmp.append(item) 
        else: 
            print 'The duplicate item is:', item 
    print 'After remove the duplicate item:',  
    return tmp 
 
if __name__=='__main__': 
    test = input("Enter List here:")        #input技巧 
    print find_duplicate(test) 
>>>
Enter List here:[2,1,4,2]
The duplicate item is: 2
After remove the duplicate item: [2, 1, 4]

l = [] 
l.append(1) 
l.append(2) 
l.append(3) 
print l 
print l.pop() 
print l.pop() 
print l.pop() 

>>> words = ['apple','bat','bar','book','atom'] 
>>> tmp   = {}                #建个空字典   
>>> for word in words: 
    letter = word[0]      #作为字典中的键 
    if letter not in tmp: #判断首字母是否存在于字典 
        tmp[letter] = [word]      #注意要添加[],很关键 
    else: 
        tmp[letter].append(word)  #如果键已经存在，值列表添加 
 
         
>>> tmp 
{'a': ['apple', 'atom'], 'b': ['bat', 'bar', 'book']} 

  john black 
Jerry! 
&alice 
TOm# 
south carolina### 
mr  smith? 

import re 
 
def clean(strings): 
    result = [] 
    for value in strings: 
        value = value.strip() 
        value = re.sub('[#!&?]','',value) 
        value = value.title() 
        result.append(value) 
    return result 
 
with open('data.txt','a+') as myfile: 
    lines = myfile.readlines() 
    for line in clean(lines): 
        print line 
>>>  
John Black 
Jerry 
Alice 
Tom 
South Carolina 
Mr Smith 

y = input('Enter a integer Here:') 
 
x = y / 2 
 
while x > 1:     
    if y % x == 0: 
        print y, 'has factor', x 
        break 
    x -= 1 
     
else: 
    print y, 'is prime' 

names = ['Tom','Alice','Wendy','Jerry','Bob','Smith'] 
 
while names: 
    if names[0] == 'Jerry': 
        print 'Hi,', names[0] 
        break 
    names = names[1:] 
     
else: 
    print 'Not Found!' 
 

>>> T = ((1,2),(3,4),(5,6)) 
>>> for (a,b) in T: 
...   print a+100, b+200 
... 
101 202 
103 204 
105 206 

source = ['sting',(3,4),100,0.1,[1,2]] 
tests  = [(3,4),3.14] 
 
for t in tests:             #先是遍历小循环 
    for s in source:        #再遍历外层循环 
        if s == t: 
            print t, 'Found it! ' 
            break 
    else:                    #else语句的位置非常关键， 
        print t, 'Not Found!' 

source = ['sting',(3,4),100,0.1,[1,2]] 
tests  = [(3,4),100,3.14] 
 
for t in tests: 
    if t in source: 
        print t, 'Found it.' 
    else: 
        print t, 'Not found.' 

seq1 = 'spam' 
seq2 = 'suck' 
 
res  = [] 
for s1 in seq1: 
    if s1 in seq2: 
        res.append(s1) 
 
print res 

S = 'abcdefghijklmn' 
 
for i in range(0,len(S),2): 
    print S[i], 
 
#或者 
print S[::2] 

L1 = [1,2,3,4]  
L2 = [5,6,7,8] #L2每个元素加一百,105,106,107 
#(5+100)*1 + (6+100)*2 + (100+7)*3 + (100+8)*4 
# 合计: 1070 
L3 = [x+100 for x in L2] 
L4 = [] 
 
for (x,y) in zip(L1,L3): 
    L4.append(x*y) 
     
print sum(L4) 
 
#或者用下面精简方式，只是刚看到有点头痛! 
print sum([x*y for x,y in [T for T in zip(L1,[x+100 for x in L2])]])

def func(seq1, seq2=None, opra=None): 
    res = []    
    if opra   == '-': 
        for item1 in seq1: 
            if item1 not in seq2: 
                res.append(item1) 
                 
    elif opra == '&': 
        for item1 in seq1: 
            if item1 in seq2: 
                res.append(item1) 
                 
    elif opra == '|': 
        tmp = seq1[:] 
        for item1 in seq2: 
            if item1 not in seq1: 
                tmp.append(item1) 
        return tmp 
     
    elif opra == '^': 
 
        for i in seq1: 
            if i not in seq2: 
                res.append(i) 
        for i in seq2: 
            if i not in seq1: 
                res.append(i)            
        return res 
     
    else: 
        print 'Need list as input!' 
 
    return res 
 
L1 = [1,2,3,4] 
L2 = [3,4,5,6] 
 
print '[L1 - L2]:',func(L1,L2,'-') 
print '[L1 & L2]:',func(L1,L2,'&') 
print '[L1 | L2]:',func(L1,L2,'|') 
print '[L1 ^ L2]:',func(L1,L2,'^') 
 
 
def list_remove(seq): 
    res = [] 
    for i in seq: 
        if i not in res: 
            res.append(i) 
    return res 
 
L1 = [3,1,2,3,8] 
print list_remove(L1) 
 
 
def find_duplicate(seq): 
    res = [] 
    for i in range(len(seq)): 
        if seq.count(seq[i]) >= 2: 
            print 'Found %s'% seq[i], 'The index is:', i 
            res.append(seq[i]) 
    return res 
 
L1 = [3,1,2,3,8] 
print find_duplicate(L1) 

>>>  
[L1 - L2]: [1, 2] 
[L1 & L2]: [3, 4] 
[L1 | L2]: [1, 2, 3, 4, 5, 6] 
[L1 ^ L2]: [1, 2, 5, 6] 
[3, 1, 2, 8] 
Found 3 The index is: 0 
Found 3 The index is: 3 
[3, 3] 

var = 99 
 
def local(): 
    var = 0 
 
def glob1(): 
    global var 
    var += 1 
 
def glob2(): 
    var = 0 
    import Learn 
    Learn.var += 1 
 
def glob3(): 
    var = 0 
    import sys 
    glob = sys.modules['Learn'] 
    glob.var += 1 
 
def test(): 
    print var 
    local();glob1();glob2();glob3() 
    print var 

def func(): 
    res = [] 
    for i in range(10): 
        res.append(lambda x, i=i: i ** x) #i=i这是关键，否则i默认记忆最后一个值:9 
    return res 
 
>>> res = func() 
>>> for i in range(10): 
    res[i](3)    
0 
1 
8 
27 
64 
125 
216 
343 
512 
729 

def min1(*args): 
    mini = args[0] 
    for arg in args[1:]: 
        if arg < mini: 
            mini = arg 
    return mini 
 
def min2(first,*rest): 
    mini  = first 
    for arg in rest: 
        if arg < first: 
            mini = arg 
    return mini 
 
def min3(*args): 
    res = list(args) 
    res.sort() 
    return res[0] 
 
print min1('c','a','b') 
print min2(3,1,4) 
print min3(1,'a',78,'c') 
def func(test, *args): 
    res = args[0] 
    for arg in args[1:]: 
        if test(arg, res): 
            res = arg 
    return res 
         
def lessthan(x, y): return x < y 
def morethan(x, y): return x > y 
 
print func(lessthan, 4,3,1,2,9) 
print func(morethan, 4,3,1,2,9) 

def intersect(*args): 
    res = [] 
    for x in args[0]: 
        for other in args[1:]: 
            if x not in other: 
                break 
            else: 
                res.append(x) 
    return set(res)        #去除重复的部分 
 
print intersect('SPAM','SCAM','SLAM') 
     
def union(*args): 
    res = [] 
    for seq in args: 
        for item in seq: 
            if not item in res: 
                res.append(item) 
    return res 
 
print union('SA','SB','SC') 
def intersect(*args): 
    res = [] 
    for x in args[0]: 
        for other in args[1:]: 
            if x not in other: 
                break 
            else: 
                res.append(x) 
    #为了交互['S','S','A','A','M','M'] 
    tmp = [] 
    [tmp.append(i) for i in res if i not in tmp] 
    return tmp 
 
print intersect('SCAM','SPAM','SLAM') 

def copyDict(old): 
    new = {} 
    for key in old: 
        new[key] = old[key] 
    return new 
 
def addDict(d1,d2): 
    new = {} 
    for key in d1.keys(): 
        new[key] = d1[key] 
    for key in d2: 
        new[key] = d2[key] 
    return new 

def isPrime(y): 
    if y < 1: 
        print y, 'not prime' 
    else: 
        x = y // 2 
        while x>1: 
            if y % x == 0: 
                print y, 'has factor', x 
                break 
            x -= 1 
        else: 
            print y, 'is prime!' 

def min_max(func,*args): 
    res = args[0] 
    for arg in args[1:]: 
        if func(arg,res): 
            res = arg 
    return res 
 
def min_func(x,y): return x < y 
def max_func(x,y): return x > y 
 
if __name__=='__main__': 
    print "The min value is:", min_max(min_func,4,3,2,1,7,6,9) 
    print "The max value is:", min_max(max_func,4,3,2,1,7,6,9) 
     
# 输出结果:       
>>>  
The min value is: 1 
The max value is: 9  

#Filename: mydir.py 
 
tag = 1 
 
def listing(module): 
    if tag: 
        print '-'*30 
        print 'name:', module.__name__,'file:', module.__file__ 
        print '-'*30 
 
    count = 0 
    for attr in module.__dict__.keys(): 
        if attr[0:2] == '__': 
            print '%02d) %s' % (count, attr) 
        else: 
            print getattr(module,attr) 
        count = count + 1 
 
    if tag: 
        print '-'*30 
        print module.__name__, 'has %d names.' % count 
        print '-'*30 
 
if __name__=='__main__': 
    import mydir 
    listing(mydir) 

'''''Filename: grades.txt   求该文件中第二列的平均值
Jerry  78
Alice  45
Wendy 96
Tom    56
Bob   85
''' 
 
temp = [] 
for line in open('grades.txt'): 
    a = line.strip().split() 
    if a: 
        temp.append(a[1]) 
         
#['78', '45', '96', '56', '85'] 
total = 0 
for i in temp: 
    total += int(i) 
 
print 'The total grade is:', total, 'The average is:', total/len(tmp)

class GenericDisplay: 
    def gatherAttrs(self): 
        attrs = '\n' 
        for key in self.__dict__: 
            attrs += '\t%s=%s\n' % (key, self.__dict__[key]) 
        return attrs 
    def __str__(self): 
        return '<%s: %s>' % (self.__class__.__name__, self.gatherAttrs()) 
         
class Person(GenericDisplay): 
    def __init__(self, name, age): 
        self.name = name 
        self.age  = age 
    def lastName(self): 
        return self.name.split()[-1] 
    def birthDay(self): 
        self.age += 1 
 
class Employee(Person): 
    def __init__(self, name, age, job=None, pay=0): 
        Person.__init__(self, name, age) 
        self.job = job 
        self.pay = pay 
    def birthDay(self): 
        self.age += 2 
    def giveRaise(self, percent): 
        self.pay *= (1.0 + percent) 
 
if __name__ == '__main__': 
    bob = Person('Bob Smith', 40) 
    print bob 
    print bob.lastName() 
    bob.birthDay() 
    print bob 
 
    sue = Employee('Sue Jones', 44, job='dev', pay=100000) 
    print sue 
    print sue.lastName 
    sue.birthDay() 
    sue.giveRaise(.10) 
    print sue 

# coding = UTF-8 
#根据给定的年月日以数字形式打印出日期 
months = [ 
    'January' , 
    'February', 
    'March'   , 
    'April'   , 
    'May'     , 
    'June'    , 
    'July'    , 
    'August'  , 
    'September', 
    'October'  , 
    'November' , 
    'December' 
    ] 
#以1~31的数字作为结尾的列表 
endings = ['st','nd','rd'] + 17 * ['th'] + \ 
          ['st','nd','rd'] + 07 * ['th'] + \ 
                                  ['st'] 
 
year  = raw_input('Year: ') 
month = raw_input('Month(1-12): ') 
day   = raw_input('Day(1-31): ') 
 
month_number = int(month) 
day_number   = int(day) 
#月份和天数减1来获得正确的索引 
month_name   = months[month_number - 1] 
ordinal      = day + endings[day_number - 1] 
 
print month_name + ' ' + ordinal + ', ' + year 
 
#输出结果 
>>>  
Year: 2015 
Month(1-12): 2 
Day(1-31): 27 
February 27th, 2015 

sentence = raw_input("Sentence: ") 
 
screen_width = 80 
text_width   = len(sentence) 
box_width    = text_width + 6 
left_margin  = (screen_width - box_width) // 2 
 
print 
print ' '*left_margin + '+'  + '-'*(box_width-4) + '+' 
print ' '*left_margin + '| ' + ' '*(text_width)  +' |' 
print ' '*left_margin + '| ' +      sentence     +' |' 
print ' '*left_margin + '| ' + ' '*(text_width)  +' |' 
print ' '*left_margin + '+'  + '-'*(box_width-4) + '+' 
print 
 
#输出结果 
>>>  
Sentence: Welcome To Beijing! 
 
                           +---------------------+ 
                           |                     | 
                           | Welcome To Beijing! | 
                           |                     | 
                           +---------------------+ 

database = [ 
    ['Bob', '1234'], 
    ['Tom', '2345'], 
    ['Foo', '1478'] 
    ] 
usr = raw_input('Enter username: ') 
pwd = raw_input('Enter password: ') 
 
if [usr, pwd] in database: 
    print 'Access Granted!' 
else: 
    print 'Access Deny!' 

width = input('Please enter width: ') 
 
price_width = 10 
item_width  = width - price_width 
 
header_format = '%-*s%*s' 
format        = '%-*s%*.2f' 
 
print '=' * width 
 
print header_format % (item_width, 'Item', price_width, 'Price') 
 
print '-' * width 
 
print format % (item_width, 'Apples', price_width, 0.4) 
print format % (item_width, 'Sweets', price_width, 0.5) 
print format % (item_width, 'Pepper', price_width, 12.94) 
print format % (item_width, 'Tender', price_width, 42) 
 
print '-' * width 

>>>  
Please enter width: 30 
============================== 
Item                     Price 
------------------------------ 
Apples                    0.40 
Sweets                    0.50 
Pepper                   12.94 
Tender                   42.00 
------------------------------ 

names   = ['Alice', 'Bob' , 'Cherry', 'David'] 
numbers = ['0000' , '1111', '2222'  , '3333' ] 
 
for index,name in enumerate(names): 
    print '%-7s=> %s' % (name, numbers[index]) 
 
#输出结果 
>>>  
Alice  => 0000 
Bob    => 1111 
Cherry => 2222 
David  => 3333 

names = ['Alice','Bob', 'John', 'Fred'] 
ages  = [27, 23, 31, 29] 
for i in range(len(ages)): 
    print names[i],' is ', ages[i], ' years old!' 
 
#输出结果: 
>>>  
Alice  is  27  years old! 
Bob  is  23  years old! 
John  is  31  years old! 
Fred  is  29  years old! 

peoples = { 
    'Alice':{ 
              'phone'    : '0948', 
              'address'  : 'aaaa' 
            }, 
    'Wendy':{ 
              'phone'    : '4562', 
              'address'  : 'bbbb' 
            }, 
    'David':{ 
              'phone'    : '4562', 
              'address'  : 'bbbb' 
            } 
    } 
#字典使用人名作为键。每个人用另外一个字典来表示，其键'phone'和'addr'分别表示他们的电话号码和地址 
 
 
labels = { 
    'phone'   : 'phone number', 
    'address' : 'address' 
    } 
#针对电话号码和地址使用描述性标签，会在打印输出时用到。 
key = '' 
name = raw_input('Name: ') 
 
 
if name in peoples: 
    request = raw_input('Enter (p) or (a): ') 
    if request == 'p': 
        key = 'phone' 
    elif request == 'a': 
        key = 'address' 
    else: 
        print 'Please input p(phone) an a(address)!' 
    print "%s's %s is %s" % (name, labels[key],peoples[name][key]) 
 
else: 
    print 'Not Found!' 

#字典使用人名作为键。每个人用另外一个字典来表示，其键'phone'和'addr'分别表示他们的电话号码和地址  
peoples = {   
    'Alice':{   
              'phone'    : '0948',   
              'address'  : 'aaaa'   
            },   
    'Wendy':{   
              'phone'    : '4562',   
              'address'  : 'bbbb'   
            },   
    'David':{   
              'phone'    : '4562',   
              'address'  : 'bbbb'   
            }   
    }   
  
   
#针对电话号码和地址使用描述性标签，会在打印输出时用到。    
labels = {   
    'phone'   : 'phone number',   
    'addr'    : 'address'   
    }   
 
name = raw_input('Name: ') 
#查找电话号码还是地址? 
request = raw_input('Phone number (p) or address (a)? ') 
 
#查找正确的键 
key = request     #如果请求即不是p也不是a 
if request == 'p': key = 'phone' 
if request == 'a': key = 'addr' 
 
#使用get()函数提供默认值 
person = peoples.get(name,{}) 
label  = labels.get(key, key) 
result = person.get(key, 'not available') 
 
print "%s's %s is %s." % (name, label, result) 

template='''''<html>
<head><title></title></head>
<h1>%(title)s</h1>
<p1>%(text)s</p1>
<body></body>
</html>''' 
 
data = {'title':'My Home Page','text':'Welcome to my home page!'} 
print template % data 
 
#输出结果: 
>>>  
<html> 
<head><title></title></head> 
<h1>My Home Page</h1> 
<p1>Welcome to my home page!</p1> 
<body></body> 
</html> 

from math import sqrt 
#从100开始往下找，找到即停止，最大为: 81 
for n in range(99, 0, -1): 
    root = sqrt(n) 
    if root == int(root): 
        print n 
        break 

while True: #一直进行下去，除非break 
    word = raw_input('Please Enter a word: ') 
    if not word: break   #输入为空的话，中断循环 
    print 'The word was: ' + word 

#将两个列表中首字母相同的罗列在一起 
girls = ['alice', 'bernice', 'clarice'] 
boys  = ['chris', 'arnold', 'bob'] 
#列表推导:  
print [b+'+'+g for b in boys for g in girls if b[0] == g[0]] 
#输出结果: 
>>>  
['chris+clarice', 'arnold+alice', 'bob+bernice'] 

def fibs(x): 
    fibs = [0, 1] # 初始值 
    for i in range(x): 
        # fibs[-2]+fibs[-1]：最新一个值是前面两个值之和 
        # 并用append方法将其添加在后面 
        fibs.append(fibs[-2]+fibs[-1])  
    print fibs 
     
if __name__=='__main__': 
    num  = input('How many Fibonacci numbers do you want? ') 
    fibs(num) 

>>> def fib(max): 
    n, a, b  = 0, 0, 1 
    tmp_list = [] 
    while n < max: 
        tmp_list.append(a) 
        a, b = b, a+b 
        n += 1 
    return tmp_list 
 
>>> fib(8) 
[0, 1, 1, 2, 3, 5, 8, 13] 

class MyList: 
    def __init__(self, start): 
        self.wrapped = [] # Make sure it's a list here 
        for x in start: 
            self.wrapped.append(x) 
    def __add__(self, other): 
        return MyList(self.wrapped + other) 
    def __mul__(self, time): 
        return MyList(self.wrapped * time) 
    def __getitem__(self, offset): 
        return self.wrapped[offset] 
    def __len__(self): 
        return len(self.wrapped) 
    def __getslice__(self, low, high): 
        return MyList(self.wrapped[low:high]) 
    def append(self, node): 
        self.wrapped.append(node) 
    def __getattr__(self, name): # Other members: sort/reverse/etc 
        return getattr(self.wrapped, name) 
    def __repr__(self): 
        return repr(self.wrapped) 
 
if __name__ == '__main__': 
    x = MyList('spam') 
    print x 
    print x[2] 
    print x[1:] 
    print x + ['eggs'] 
    print x * 3 
    x.append('a') 
    x.sort() 
    for c in x: 
        print c, 
 
# 输出结果如下: 
>>>  
['s', 'p', 'a', 'm'] 
a 
['p', 'a', 'm'] 
['s', 'p', 'a', 'm', 'eggs'] 
['s', 'p', 'a', 'm', 's', 'p', 'a', 'm', 's', 'p', 'a', 'm'] 
a a m p s 

import re 
import urllib 
 
def getHtml(url): 
    page = urllib.urlopen(url) 
    html = page.read() 
    return html 
 
def getImg(html): 
    reg = r'src="(.*?\.jpg)" width' 
    imgre = re.compile(reg) 
    imgList = re.findall(imgre, html) 
    x = 0    
    for imgurl in imgList: 
        urllib.urlretrieve(imgurl, '%s.img' % x)   # urlretrieve()下载图片 
        x += 1 
         
html = getHtml("http://www.w3cschool.cc/") 
print getImg(html) 

# -*- coding: utf-8 -*- 
 
import sys 
from PyQt4 import QtCore, QtGui 
 
# 自定义的窗口类 
class TestWindow(QtGui.QWidget): 
    # 窗口初始化 
    def __init__(self, parent = None): 
        super(TestWindow, self).__init__(parent) 
        self.setWindowTitle(u'胡桃夹子') 
 
        # 创建按钮 
        self.pushButton = QtGui.QPushButton(u'测试按钮') 
 
        # 创建文本框 
        self.textEdit = QtGui.QTextEdit() 
 
        # 创建垂直布局 
        layout = QtGui.QVBoxLayout() 
 
        # 将控件添加到布局中 
        layout.addWidget(self.textEdit) 
        layout.addWidget(self.pushButton) 
 
        # 设置窗口布局 
        self.setLayout(layout) 
 
        # 设置按钮单击动作 
        self.pushButton.clicked.connect(self.sayHello) 
 
    # 按钮动作处理 
    def sayHello(self): 
        self.textEdit.setText('Hello World!') 
 
# 程序主入口 
if __name__=='__main__': 
    app = QtGui.QApplication(sys.argv) 
    mainWindow = TestWindow() 
    mainWindow.show() 
    sys.exit(app.exec_()) 

#FileName: data.conf 
(tablename  "A__employee__id.sql") 
(userid     "000001") 
(number     "100001") 
(level      "P1") 
 
 
(tablename  "B__employee__id.sql") 
(userid     "100001") 
(number     "100000") 
(level      "P2") 
 
 
(tablename  "C_other_table.sql") 
(userid     "000001") 
(number     "100001") 
(level      "P2") 
 
 
(tablename  "C__employee__table.sql") 
(userid     "000001") 
(number     "100001") 
(level      "P3")

def parse_File(filename): 
    tmp = [] 
    fh = open(filename) 
    line = fh.readline() 
    flag = 0 
    while line: 
        if "tablename" in line and "__employee__" in line: 
            count = 0 
            flag  = 1 
        if flag == 1: 
            count += 1 
            if count == 4 and "level" in line: 
                value = line.split(r'"')[1] 
                tmp.append(value) 
        line = fh.readline() 
    return tmp 
 
 
if __name__ == '__main__': 
    print parse_File('data.conf')