C++程序异常求解

//201.cpp

#include "stdafx.h"

using namespace System;
// Define the enumeration at global scope
enum class Month{January, February, March, April,
 May, June, July, August,
 September,October, November, December};

int main(array<System::String ^> ^args)
{
 Month month = Month::January;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::February;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::March;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::April;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::May;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::June;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::July;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::August;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::September;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::October;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::November;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 month = Month::December;
 Console::WriteLine(L"Monthis {0} and the value is {1} ", month, safe_cast<int>(month));
 return 0;
}
这个程序运行闪一下就退出了，我在后面加上system（"PAUSE"）,也不行，不识别system，不知道怎么办？