fibs = [0,1]   # 定义一个列表，初始内容是0，1
for i in range(8):  #循环8次fibs.append(fibs[-2]+fibs[-1])  #append在末尾追加一个数，这个是它前面两个数的和#输入
>>> fibs
#输出
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34]

fibs = [0,1]
num = input('How many fibonacci numbers do you want?')
for i in range(num-2):fibs.append(fibs[-2]+fibs[-1])
print fibs
#输入
>>>
How many fibonacci numbers do you want?12
#输出
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

num = input('How many fibonacci numbers do you want?')
print fibs

>>> import math
>>> x = 1
>>> y = math.sqrt
>>> callable(x)
False
>>> callable(y)
True

>>> def hello(name):return 'hello.'+name+'!'
#我们定义了一个hello函数，它会将输入的内容前面加“hello.”后面加“！”，并返回给用
#户
>>> print hello('world')
hello.world!
>>> print hello('zhangsan')
hello.zhangsan!

#定义fibs函数，用于婓波那契数列
>>> def fibs(num):result = [0,1]for i in range(num-2):result.append(result[-2]+result[-1])return result#直接调用fibs函数
>>> fibs(10)
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
>>> fibs(15)
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377]

#局部变量
def func(x):print 'x is',xx =2    # x=2只在func函数内其作用print 'Changed local x to',xx = 50
func(x)   #func函数并没有返回数据过来。
print 'x is still',x#输出
>>>
x is 50
Changed local x to 2
x is still 50

def func():global xprint 'x is',xx = 2print 'Changed local x to',xx =50
func()
print 'Value of x is ',x
#输出
x is 50
Changed local x to 2
Value of x is  2

def say(message,times=1):print message*timessay('Hello')
say('World',5)
#输出
>>>
Hello
WorldWorldWorldWorldWorld

def func(a,b=5,c=10):print 'a is',a, 'and b is',b,'and c is',cfunc(3,7)
func(24,c=32)
func(c=23,a=14)
#输出
>>>
a is 3 and b is 7 and c is 10
a is 24 and b is 5 and c is 32
a is 14 and b is 5 and c is 23

def recursion()return recursion()

def f(n):if n == 1:return 1else:return n*f(n-1)