C++分割字符串函数封装

#include <string>#include <vector>#include <iostream>#include <string.h>using namespace std;void split(const string& src, const string& separator, vector<string>& dest){    string str = src;    string substring;    string::size_type start = 0, index;    do    {        index = str.find_first_of(separator,start);        if (index != string::npos)        {                substring = str.substr(start,index-start);            dest.push_back(substring);            start = str.find_first_not_of(separator,index);            if (start == string::npos) return;        }    }while(index != string::npos);    //the last token    substring = str.substr(start);    dest.push_back(substring);}int main(){    vector<string>vStr;    string str="aaa_bbb_ccc_ddd";    split(str,"_",vStr);    cout<<str<<endl;    for (int i=0;i<vStr.size();i++)    {        cout<<vStr[i]<<endl;    }    return 0;}