关于c语言中的rand()

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       /* rand example: guess the number */

       #include <stdio.h>

       #include <stdlib.h>

       #include <time.h>

       int main ()

       {

        int iSecret,网站源码后台文件 iGuess;

        /* initialize random seed: */

        srand ( time(NULL) );

        /* generate secret number: */

        iSecret = rand() % + 1;

        do {

        printf ("Guess the number (1 to ): ");

        scanf ("%d",&iGuess);

        if (iSecret<iGuess) puts ("The secret number is lower");

        else if (iSecret>iGuess) puts ("The secret number is higher");

        } while (iSecret!=iGuess);

        puts ("Congratulations!");

        return 0;

       }