初学C++ 之 输入输出（IDE：vs2013）

 #include <iostream>　　//引用头文件（输入输出）

 using namespace std;　　//引用命名空间，方便使用输入输出语句

 class MathMethod
 {
 public:
     int a;
     int b;
     MathMethod(int aa, int bb);
     ~MathMethod();
     int AddInt();
 };

 MathMethod::MathMethod(int aa, int bb)
 {
     a = aa;
     b = bb;
 }
 MathMethod::~MathMethod(){}

 int MathMethod::AddInt()
 {
     return a + b;
 }

 int AddInt(int a, int b)
 {
     return a + b;
 }

 int main()
 {
     int abc();
     int adc[]{ ,  };
     for (int i = ; i < ; i++)
     {
         cout << adc[i] << endl;
     }

     char ch;
     cin >> ch;//输入
     cout << ch << endl;//输出
     wchar_t wch = 'a';
     cout << wch << endl;//输出ascll值

     int a, b;
     cin >> a;
     cin >> b;
     int c;
     c = AddInt(a, b);
     MathMethod mm(a, b);
     int d = mm.AddInt();
     cout << "a + b = " << c << endl;
     cout << "a + b = " << d << endl;
     system("pause");
     return ;
 }