Functions and Library

#include <iostream.h>

// author: S.Y. Lee, 9/17/96

void Hello()      // user-defined function
{
    cout << "Hello world" << endl;
}

int main()
{
    Hello();      // call Hello

    return 0;
}

弧

1. 祘ΑΤㄢㄧ计 main ㎝ Hello
2. ㄧ计㊣ㄧ计 Hello
3. void Hello( )
   • void ボㄧ计⊿Τㄧ计, ぃゲノ return 痹瓃
   • ( )ボㄧ计⊿Τ把计
4. ㄧ计 Hello ﹚竡ゲ斗ㄧ计 main ぇ玡
5. 安 Hello ﹚竡 main ぇ, 玥 main ぇ玡ゲ斗 Hello ぇ prototype, 

   #include <iostream.h>
   
   // author: S.Y. Lee, 9/17/96
   
   void Hello();     // prototype for Hello
   
   int main()
   {
       Hello();      // call Hello
   
       return 0;
   }
   
   void Hello()      // user-defined function
   {
       cout << "Hello world" << endl;
   }