//*********************
//**    ch4_2.cpp    **
//*********************

#include <iostream.h>

void main()
{
  int val;

  do{   //循環體
    cout <<"please enter a number between 1 and 10\n";
    cin >>val;   //修改條件
    if(val<1 || val>10)
      cout <<"the number is not between 1 and 10\n";
  }while( val<1 || val>10 );  //繼續條件

  cout <<"you entered a " <<val <<endl;
}