想知道我的程序做错了什么[暂停]

Question

#include <iostream>
#include <string>

using namespace std;
/*
Author: Isaiah Santos
Purpose: To spitout date in a specific Order
*/

main()
{

string >> month , day , year ,;

cout << "Hello My Name Is Isaiah Santos \n";

cout << "Enter The Current Month (1-12): \n";
    cin >> month;

cout << "Enter The Numberical Number For Today (1-31): \n";
    cin >> day;

cout << "Enter The Year (YYYY) \n" >>
    cin >> year;

string datestring = "The Date Is  " + year "/" + day "/" + month + ".";
cout << datestring;


    return 0;
}

Here is the build messages I got while attempting to compile:

error: expected Expression

error: redefinition of datesting

error: invalid operands to binary expression ('const char *' and 'const char [2]')|

It was working but the format for my output was wrong, so I changed it, but now it won't compile, so I was wondering what I messed up. Still kinda new to c++. Thank you all for the help so far and no none of it was copy pasta just typing in what my friend told me. Also I have tried googling the error codes and all the ones I have read haven't been of much help.

Answer 1

Update this line,

string month, day, year;

Also this,

string datestring = "The Date Is " + year + "/" + day "/" + month + ".";

Answer 2

In C++ there are two kinds of strings, arrays of characters and the std::string class. Addition acting to concatenate strings only works if the first is of type std::string . You can fix your code easily:

string datestring = string("The Date Is  ") + year + "/" + day "/" + month + ".";