Python中map函数

Python中map(),帮助文档：
class map(object)
| map(func, *iterables) –> map object
|
| Make an iterator that computes the function using arguments from
| each of the iterables. Stops when the shortest iterable is exhausted.
|
| Methods defined here:
|
| getattribute(self, name, /)
| Return getattr(self, name).
|
| iter(self, /)
| Implement iter(self).
|
| new(*args, **kwargs) from builtins.type
| Create and return a new object. See help(type) for accurate signature.
|
| next(self, /)
| Implement next(self).
|
| reduce(…)
| Return state information for pickling.
map接受两个参数，第一个参数是一个函数，第二参数为一个iterables，map函数把该函数作用于iterables的每一个元素，并把结果作为新的iterables返回。

def f(x):
    return x*x
l = [1,2,3,4,5,6]
result = map (f, l)
print(list(result))