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全国计算机等级考试二级C语言上机题1

10月30日 编辑 39baobao.com

[职称英语等级考试模拟题理工类AB级]第1部分 词汇 选择(第1-15题,每题1分,共15分,建议10分钟以内完成)下面共有15句子,每个句子均有一个词或短语划有底横线,请从每个句子后面所给的四个选项中选择一个与划线部分意义...+阅读

☆题目1

请编写一个函数jsvalue(int m,int k,int xx[]),该函数的功能是:将大于整数m且紧靠m的k个素数存入数组xx传回。

 后调用函数writedat()读取10组数据,分别得出结果且把结果输出到文件out.dat中。

 部分源程序存在文件prog1.c中。

 例如:若输入17 5 则应输出:19,23,29,31,37。

 请勿改动主函数main()和写函数writedat()的内容。

&emspinclude

&emspinclude

void readwritedat();



int isp(int m)

{

 int i;

 for(i=2;i if(m % i==0)return 0;

 return 1;

}



void num(int m,int k,int xx[])

{ int s=0;



for(m=m+1;k>0;m++)

 if(isp(m)) { xx[s++]=m; k--;}

}



main()

{

 int m,n,xx[1000];

 clrscr();

 printf("\nplease enter two integers:");

 scanf("%d%d",

 num(m,n,xx);

 for(m=0;m printf("%d ",xx[m]);

 printf("\n");

 readwritedat();

}



void readwritedat()

{

 int m,n,xx[1000], i;

 file *rf,*wf;





 rf=fopen("in.dat","r");

 wf=fopen("out.dat","w");

 for(i=0;i

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