參考簡明python教程
number = 20
guess = int(raw_input('enter an integer:'))
if guess == number
print
'true'
elif guess < number
print
'higher'
else:
print
'lower'
while
running:
guess = int(raw_input('enter an integer : '))
if guess == number:
print 'congratulations, you guessed it.'
running = false # this causes the while loop to stop
elif guess < number:
print 'no, it
is a little higher than that'
else:
print 'no, it
is a little lower than that'
else:
print 'the while loop is
over.'
# do anything else you want to do here
print 'done'
for i in
range(1, 5):
print i
else:
print 'the
forloop
is over'
def
sayhello
():print
'hello world!'
# block belonging to the function
sayhello() # call the function
def
func
():global x
print
'x is', x
x = 2
print
'changed local x to', x
x = 50
func()
print
'value of x is', x # x變成2
def
say(message, times = 1):
print message * times
say('hello')
say('world', 5) # 輸出worldworldworldworldworld
def
printmax
(x, y):
'''prints the maximum of two numbers.
the two values must be integers.'''
x = int(x) # convert to integers, if possible
y = int(y)
if x > y:
print x, 'is maximum'
else:
print y, 'is maximum'
printmax(3, 5)
print printmax.__doc__
$ python func_doc.py
5 is maximum
prints the maximum of
two numbers.
the two values must be integers.
zoo = ('wolf', 'elephant', 'penguin')
print 'number
of animals in the zoo is', len(zoo)
new_zoo = ('monkey', 'dolphin', zoo)
print 'number
of animals in the new zoo is', len(new_zoo)
print 'all animals in
new zoo are', new_zoo
print 'animals brought from old zoo are', new_zoo[2]
print 'last animal brought from old zoo is', new_zoo[2][2]
number of animals in the zoo is
3number of animals in the new zoo is
3all animals in
new zoo are ('monkey', 'dolphin', ('wolf', 'elephant', 'penguin'))
animals brought from
old zoo are ('wolf', 'elephant', 'penguin')
last animal brought from
old zoo is penguin
singleton = (2 , ) 必須在第乙個專案後跟乙個逗號
# 'ab' is short for
'a'ddress'b'ook
ab =
print
"swaroop's address is %s" % ab['swaroop']
# adding a key/value pair
ab['guido'] = '[email protected]'
# deleting a key/value pair
del ab['spammer']
print
'\nthere are %d contacts in the address-book\n' % len(ab)
for name, address in ab.items():
print
'contact %s at %s' % (name, address)
if'guido'
in ab: # or ab.has_key('guido')
print
"\nguido's address is %s" % ab['guido']
name.startswith('swa'): # 測試字串是否以給定字串開始
print 'yes, the
string
starts with
"swa"'
if 'a' in
name: # 一部分
print 'yes, it
contains
thestring
"a"'
ifname.find('war') != -1: #找到給定字串在另乙個字串中的位置，-1表示找不到
print 'yes, it
contains
thestring
"war"'
class
person:
pass
# an empty block
p = person()
print p
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