Example of String Construction
std::string name;
using namespace std;
string s1 = "123456789";
string strA(s1);
// The next declaration is not allowed by Visual C++ 6.0
string strB(s1,3); // value is "456789"
// but this works with Visual C++ 6.0
string strB(s1,3,string::npos); // value is "456789"
string strC(s1,3,4); // value is "4567"
string abc1(cstring,8); // value is "An array"
string abc2("This is a string");
string abc3(10,'*'); // value is "**********"