//以下基于Debug调试模式，
map<int, string> mss; clock_t c1, c2; c1 = clock(); for (int i=0; i<500000; i++) { unsigned int lun = 123324; char num[] ="012345678912"; vector<char> vv; //【1】ostringstream 效率低于_itoa_s //ostringstream lstrStream; //lstrStream<<lun; //耗时6.875秒 //char cc[12]; //_itoa_s(lun, cc, 12, 10); //耗时0.063秒 //【2】map[索引]=值 效率低于 map.insert //mss[i] = "abdfadaf"; //耗时9.172秒 //mss.insert(make_pair(i, "abdfadaf")); //耗时7.454秒 //【3】vector单个push_back 效率低于 vector.insert //for (int n=0; n<12; n++) //耗时30.344秒 //{ // vv.push_back(num[n]); //} //vv.insert(vv.end(), &num[0], &num[0]+12); //耗时3.079秒 } c2 = clock(); double d = (double)(c2-c1)/CLOCKS_PER_SEC; map<int, string> mss; cloc 
