等级考试上机题目(上课用)(7)

for(i=1;i<=10;i++)

/**********found**********/

fprintf(___1___,"%d %f\n",i,sqrt((double)i));

printf("\nSucceed!！\n");

/**********found**********/

___2___;

printf("\nThe data in file :\n");

/**********found**********/

if((fp=fopen(___3___,"r"))==NULL)

return 0;

fscanf(fp,"%d%f",&n,&x);

while(!feof(fp))

{printf("%d %f\n",n,x); fscanf(fp,"%d%f", &n,&x);}

fclose(fp);

return 1;

}

main()

{char fname[]="myfile3.txt";

fun(fname);

}

2．程序填空题

#include <stdio.h>

#include <stdlib.h>

fun (int n, int *a)

{int i, j, p, t;

for (j = 0; j<n-1 ; j++)

{p = j;

/************found************/

for (i=j+1; i<n-1 ; i++)

if (a[p]>a[i])

/************found************/

t=i;

if (p!=j)

{t = a[j]; a[j] = a[p]; a[p] = t;}

}

}

putarr(int n, int *z)

{int i;

for (i = 1; i <= n; i++, z++)

7