# python基础学习代码之条件和循环

def func1():
alist = [‘cathy’,’terry’,’joe’,’health’,’lucy’]
for i in range(-1,-len(alist)-1,-1):
print i,alist[i]
def func2():
alist = [‘cathy’,’terry’,’joe’,’health’,’lucy’]
for i,name in enumerate(alist):
print ‘%d %s’ % (i,name)
import random
def func3():
alist = [‘cathy’,’terry’,’joe’,’health’,’lucy’]
blist = [random.randint(i,10) for i in range(5)]
for a,b in zip(alist,blist):
print a,b
def func4():
num = 4
count = num / 2
while count > 0:
if num % count == 0:
print count,’is the largest factor of’,num
break
count -= 1
def showmaxfactor(num):
count = num / 2
while count > 1:
if num % count == 0:
print num,’largest factor is’,count
break
count -= 1
return true
else:
print num,’is prime’
return false
def func5():
for eachnum in range(10,60):
showmaxfactor(eachnum)
def func6():
alist = range(5)
return map(lambda x: x ** 2,alist)
def func7():
alist = [x ** 2 for x in range(5)]
return alist
def func8():
return filter(lambda x:x % 2,range(10))
def func9():
return [x for x in range(10) if x % 2]
def func10():
return [(x+1,y+1) for x in range(3) for y in range(5)]
import os
def func11():
f = open(‘client.py’,’r’)
print os.stat(‘client.py’).st_size
print len([word for line in f for word in line.split(‘ ‘)])
f.seek(0)
print sum([len(word) for line in f for word in line.split(‘ ‘)])
def cols():
yield 3
yield 5
def func12():
alist = [1,2,4,6]
x = ((i,j) for i in alist for j in cols())
for a in x:
print a
def func13():
f = open(‘client.py’,’r’)
longest = 0
f.close()
for line in alllines:
linelen = len(line.strip())
if linelen > longest:
longest = linelen
return longest
def func14():
f = open(‘client.py’,’r’)
alllinelen = [len(x.strip()) for x in f]
f.close()
return max(alllinelen)
def func15():
return max(len(x.strip()) for x in open(‘client.py’,’r’))
def func16(x,y,z):
alist = []
for i in range(x,y+1,z):
alist.append(i)
return alist
def getfactors(num):
for i in range(1,num+1):
if num % i == 0:
print i
def isperfect(num):
sum = 0
count = num / 2
while count > 0:
for i in range(1,count+1):
if num % i == 0:
sum += i
count -= 1
if sum == num:
return true
else:
return false
def fibonacci(num):
if num == 1:
return [1]
if num == 2:
return [1,1]
list = [1,1]
if num > 2:
for i in range(3,num+1):
list.append(list[-1]+list[-2])
return list
def convert():
start = int(raw_input(u’请输入起始值：’))
end = int(raw_input(u’请输入结束值：’))
for i in range(start,end+1):
print “dec bin oct hex”
print ‘-‘ * 20
print “%d %s %s %s” % (i,bin(i),oct(i),hex(i))

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