int、string、vector<int>的转换

一、vector<int>转换成string

std::stringstream ss;
string testString;
std::reverse_copy(result.begin(),result.end(),ostream_iterator<int>(ss,""));
testString = ss.str();

二、string转换成int

string op;
int temp;
temp = atoi(op.substr(j,1).c_str());