new to arduino~~

I begin to play with arduino, which can be developped with arduino c ( it resembles c or cpp ).

my first program is to drive the 7-segment led.

it is simpler than verilog HDL because it is not the sucky hardware describtion language~~(*^__^*) ~~

so many sensors can be utilized , it's a cool stuff~

ps arduino is a open source product~

here is my code:

//设置控制各段的数字IO脚
int _A=1;
int _B=2;
int _C=3;
int _D=4;
int _E=5;
int _F=6;
int _G=7;
int _DP=8;
/*

                 _B   
▕▔▏         _C   _A
▕▔▏   ====》  _D
  ▔▫          _E   _G
                 _F _DP
*/

int NUM_SEG [ 16 ][ 7 ] = {
{ 1,1,1,0,1,1,1 }, //0
{ 1,0,0,0,0,0,1 }, //1
{ 1,1,0,1,1,1,0 }, //2
{ 1,1,0,1,0,1,1 }, //3
{ 1,0,1,1,0,0,1 }, //4
{ 0,1,1,1,0,1,1 }, //5
{ 0,1,1,1,1,1,1 }, //6
{ 1,1,0,0,0,0,1 }, //7
{ 1,1,1,1,1,1,1 }, //8
{ 1,1,1,1,0,1,1 }, //9
{ 1,1,1,1,1,0,1 }, //a
{ 0,0,1,1,1,1,1 }, //b
{ 0,1,1,0,1,1,0 }, //c
{ 1,0,0,1,1,1,1 }, //d
{ 0,1,1,1,1,1,0 }, //e
{ 0,1,1,1,1,0,0 }  //f
};



void lit( int segment )
{
  digitalWrite (segment,LOW);
}

void quench ( int segment )
{
  digitalWrite ( segment,HIGH );
}

void set_segment ( int segment , int sta )
{
  if ( sta == 1 )
  {
    lit ( segment );
  }
  else
  {
    quench ( segment );
  }
}


void NumDisplay ( int num , int dp , int time)
{
  for ( int t = 0 ; t < time ; t++ )
  {
      for ( int i = 0 ; i < 7 ; i++ )
      {
        set_segment ( i+1 , NUM_SEG [ num % 16 ][ i ] );
        set_segment ( _DP , dp );
      }
      
      delay ( 1 );
  }

}


void setup()
{
  int i;//定义变量
  for(i=1;i<=8;i++)
    pinMode(i,OUTPUT);//设置4～11引脚为输出模式
}

void loop()
{  
  while(1)
  {
    for ( int i = 0 ; i < 16 ; i++ )
      NumDisplay ( i , 0 , 500 );
  }
}