1.map map是python内置的高阶函数,它接收一个函数和一个列表,函数依次作用在列表的每个元素上,返回一个可迭代map对象. 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 shortes…
reference is_permutation Test whether range is permutation of another Parameters first1, last1 Input iterators to the initial and final positions of the first sequence. The range used is [first1,last1), which contains all the elements between first1…