Python：函数式编程与函数

1. lambda 单行函数

func =lambda x: x *2   # 定义lambda函数，通过赋值给func进行调用

func(3)
>>> 6

lambda x, y: x + y

2. map(func,seq1[,seq2])

3. 普通函数

3.1 函数的定义

def hello(name):
return 'hello ' + name + '!'

print hello('a')

>>>hello a!

def foo(i):
print 'the number is: ', i
i+=1
if i<10:
foo(i)
else:
print 'end!'

foo(0)

>>>
the number is:  0
the number is:  1
the number is:  2
the number is:  3
the number is:  4
the number is:  5
the number is:  6
the number is:  7
the number is:  8
the number is:  9
end!