C++ 利用流来进行string和其他类的转换

#include<string>
#include<sstream>

string Othertostring(double a)
{
    ostringstream oss;
    oss << a;
    return oss.str();
}
string Othertostring(int a)
{
    ostringstream oss;
    oss << a;
    return oss.str();
}
double StringToDouble(string str)
{
    istringstream iss(str);
    double a;
    iss >> a;
    return a;
}