摘要： 先给个实例：#include<iostream>#include<numeric>#include<vector>#include<algorithm>#include<functional>#include<iterator>#include<string>using namespace std;template <class T>struct display{ void operator()(const T& x) const { cout<<x<<" 阅读全文

摘要： 相关函数都包含在<numeric>中先列个实例#include<iostream>#include<numeric>#include<vector>#include<algorithm>#include<functional>#include<iterator>using namespace std;void main(){ int ia[5] = {1,2,3,4,5}; vector<int> iv(ia, ia+5); cout<<accumulate(iv.begin(), iv 阅读全文