嵌套 if 语句

#include <stdio.h>



int main () {



   /* local variable definition */

   int a = 100;

   int b = 200;



   /* check the boolean condition */

   if( a == 100 ) {



      /* if condition is true then check the following */

      if( b == 200 ) {

         /* if condition is true then print the following */

         printf("Value of a is 100 and b is 200\n" );

      }

   }



   printf("Exact value of a is : %d\n", a );

   printf("Exact value of b is : %d\n", b );



   return 0;

}