c语言课程设计___学生成绩管理系统(11)

printf(" 制作者:自动控制欲进行工程学院电气 (2)班 吴洲洋 \n");

for (i = 0; i < 80; i++) putchar('='); putchar('\n');

printf(" 1 输入信息 2 输出信息\n");

printf(" 3 按平均分排序 4 按学号查找\n");

printf(" 5 插入 6 按学号删除\n");

printf(" 7 按平均分输出统计信息 8 保存到文件\n");

printf(" 0 退出\n"); for (i = 0; i<= 79; i++) putchar('='); putchar('\n');

printf("%s\n", "请输入各操作对应的序号:"); }

void save(STUDENT *data, int len)//将数据保存到文件 {

int i; FILE *fp;

fp=fopen("成绩统计表.txt","w"); fprintf(fp,"%8s", "学号"); fprintf(fp,"%8s", "姓名"); fprintf(fp,"%8s", "英语"); fprintf(fp,"%8s", "数学"); fprintf(fp,"%10s", "计算机"); fprintf(fp,"%12s", "平均分"); fprintf(fp,"%10s\n", "总分");

fprintf(fp,"========================================================================\n");

putchar('\n');

for (i = 0; i< len; i++) {

fprintf(fp,"%8d", data[i].no); fprintf(fp,"%8s", data[i].name);

fprintf(fp,"%8.1lf", data[i].english); fprintf(fp,"%8.1lf", data[i].math);

fprintf(fp,"%10.1lf", data[i].computer); fprintf(fp,"%12.1lf", data[i].mark_ave); fprintf(fp,"%10.1lf\n", data[i].mark_tot);