C++ 中int 数组转换为string

#include<iostream>
#include<string>
#include<sstream>

using namespace std;

string IntToString(int &);

int main()
{
	int a[]={1,2,3,4,5,6,7,8,9,10};

	int arrayLength=sizeof(a)/sizeof(a[0]);

	string strs;

	for(int i=0;i<arrayLength;i++)
	{
		int &temp=a[i];
		strs+=IntToString(temp);
	}

	cout<<strs<<endl;

	return 0;
}

string IntToString(int & i)
{
  string s;
  stringstream ss(s);
  ss<<i;
  return ss.str();
}