fig03_10.c

C程序设计经典教程第5版程序示例,比较适合初级c语言的学生

/* Fig. 3.10: fig03_10.c
   Analysis of examination results */
#include <stdio.h>

/* function main begins program execution */
int main( void )
{
   /* initialize variables in definitions */
   int passes = 0;   /* number of passes */
   int failures = 0; /* number of failures */
   int student = 1;  /* student counter */
   int result;       /* one exam result */

   /* process 10 students using counter-controlled loop */
   while ( student <= 10 ) {

      /* prompt user for input and obtain value from user */
      printf( "Enter result ( 1=pass,2=fail ): " );
      scanf( "%d", &result );

      /* if result 1, increment passes */
      if ( result == 1 ) {     
         passes = passes + 1;
      } /* end if */
      else { /* otherwise, increment failures */
         failures = failures + 1;
      } /* end else */

      student = student + 1; /* increment student counter */ 
   } /* end while */

   /* termination phase; display number of passes and failures */
   printf( "Passed %d\n", passes );
   printf( "Failed %d\n", failures );

   /* if more than eight students passed, print "raise tuition" */
   if ( passes > 8 ) {
      printf( "Raise tuition\n" );
   } /* end if */

   return 0; /* indicate program ended successfully */

} /* end function main */




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