str1 = ‘abced’
for i in range(-1, -len(str1), -1) + [none]:
print str1[:i]
s, t = ‘abc’, ‘def’
print zip(s, t)
for i, t in enumerate(str1):
print i, t
print isinstance(‘foo’, str)
import string
def checkid():
alphas = string.letters + ‘_’
nums = string.digits
check = raw_input(‘input id for check:’)
if len(check) > 1:
if check[0] not in alphas:
print “invaid id”
else:
for o in check[1:]:
if o not in alphas + nums:
print “invaid id”
break
else:
print(“valid id”)
def func1():
alist = [“xx3”, “1tc”]
for i, s in enumerate(alist):
print i, s
def func2():
alist = [“hello”, “come”, “12”]
blist = [“welcome”, “what”, 15]
for i, s in zip(alist,blist):
print i, s
def func3():
alist = []
anum = raw_input(‘input>>’).strip()
for i in anum:
alist.append(i)
alist.sort()
alist.reverse()
return alist
def func4():
alist = []
while true:
num = int(raw_input(‘input >>’).strip())
if num == 0:
break
alist.append(num)
alist.sort()
return alist
import keyword
def func5():
alphas = string.letters
nums = string.digits
print ‘the id check!’
str1 = raw_input(‘input id:’)
if str1 in keyword.kwlist:
print ‘invalid,it is a keyword!’
else:
if str1[0] not in alphas + ‘_’:
print ‘invalid,first symbol must be alpha or underline!’
else:
for c in str1[1:]:
if c not in alphas + nums:
print ‘invalid,symbol must be alpha or numbers!’
print ‘valid id!’
def showstr():
strs = raw_input(‘input strings::’)
if len(strs) == 0:
return false
elif len(strs) == 1:
print strs
return true
for i, j in enumerate(strs):
if i == 0 and len(strs) != 1:
print j, strs[i+1]
elif i != 0 and i == (len(strs) – 1):
print strs[i-1]
else:
print strs[i-1], j, strs[i+1]
return true
def cmpstr():
str1 = raw_input(‘input string1>’)
str2 = raw_input(‘input string2>’)
if len(str1) != len(str2):
return false
for i, j in enumerate(str1):
if ord(j) – ord(str2[i]) != 0:
return false
return true
def func6():
str1 = raw_input(‘input your strings:>>’)
i = 0
j = len(str1) – 1
while str1[i] == ‘ ‘:
i = i + 1
while str1[j] == ‘ ‘:
j = j – 1
str1 = str1[i:j+1]
print str1
def func7():
alist = [“zero”, “one”, “two”, “three”, “four”, “five”, “six”, “seven”, “eight”, “nine”]
nlist = ”
while true:
number = raw_input(‘input a number(0~1000):’)
if len(number) == 0:
break
else:
number = str(number)
for i in number:
nlist += alist[int(i)] + ‘-‘
return nlist[0:-1]
def func8():
minutes = int(raw_input(‘input minutes:’))
minu = minutes % 60
hour = minutes / 60
print “%d:%d” % (hour, minu)
def func9():
str1 = raw_input(‘input string:>>’)
return str1.swapcase()
def func10():
mystr = raw_input(‘enter a number:’)
number = int(mystr)
alist = range(1, number+1)
print ‘before:’,’alist’
i = 0
while i < len(alist):
if number % alist[i] == 0:
del alist[i]
i = i + 1
print 'after',alist
def findchr(str1, char):
lchar = len(char)
if char not in str1:
return -1
for i, j in enumerate(str1):
if j in char:
if str1[i:i+lchar] == char:
return i
return -1
def rfindchr(str1, char):
lchar = len(char)
lstring = len(str1)
if char not in str1:
return -1
for i, j in enumerate(str1):
if j in char:
if str1[lstring-1-i:lstring-1-i+lchar] == char:
return i
return -1
def subchr(string1, origchar, newchar):
import string
return string.replace(string1, origchar, newchar)
def atoc(strparm):
cindex = strparm.rfind('-')
if cindex 0:
real = float(strparm[0:cindex])
compl = float(strparm[cindex:-1])
return complex(real, compl)
import random
def func11():
alist = ["paper", "shears", "stone"]
g = int(raw_input('input 1:paper,2:shears,3:stone:>‘)) – 1
print “your come %s” % alist[g]
r = random.choice([0, 1, 2])
print “him come %s” % alist[r]
if g == r:
print ‘nobody win!’
# r win
if (r > g and g – r != -2) or r – g == -2:
print ‘him win!’
# g win
else:
print ‘i win!’
import datetime
def isleapyear(year):
if (year % 4 == 0) and (year % 100 != 0) or (year % 4 == 0) and (year % 100 == 0):
return true
else:
return false
def func12():
month = {1:31,2:28,3:31,4:30,5:31,6:30,7:31,8:31,9:30,10:31,11:30,12:31}
while true:
sdate = raw_input(‘input start date[dd/mm/yyyy]:’).split(‘/’)
dd, mm, yyyy = 0, 1, 2
sdate[dd],sdate[mm],sdate[yyyy] =int(sdate[0]),int(sdate[1]),int(sdate[2])
if sdate[mm] > 12 or sdate[mm] < 1:
continue
if isleapyear(sdate[yyyy]):
month[2] = 29
if sdate[dd] < 1 or sdate[dd] > month[sdate[mm]]:
continue
break
while true:
edate = raw_input(‘input end date[dd/mm/yyyy]:’).split(‘/’)
edate[dd],edate[mm],edate[yyyy] =int(edate[0]),int(edate[1]),int(edate[2])
if edate[mm] > 12 or edate[mm] < 1:
continue
if isleapyear(sdate[yyyy]):
month[2] = 29
if edate[dd] < 1 or edate[dd] > month[edate[mm]]:
continue
break
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