sort对vector排序

#include<iostream>#include<algorithm>#include<vector>using namespace std;struct node{int val;string s;node(int vv,string ss){val = vv;s = ss;}};bool cmp(const node&a,const node&b){return a.val < b.val;}vector<node>vc;int main(){vc.push_back(node(10,"wxdcb));vc.push_back(node(-10,"Man"));vc.push_back(node(30,"Li"));sort(vc.begin(),vc.end(),cmp);for(int i = 0;i < vc.size();i++){cout<<vc[i].val<<" ";}return 0;}