局部变量

#include <stdio.h>



int main () {



  /* local variable declaration */

  int a, b;

  int c;



  /* actual initialization */

  a = 10;

  b = 20;

  c = a + b;



  printf ("value of a = %d, b = %d and c = %d\n", a, b, c);



  return 0;

}