C语言程序设计教程_李含光_郑关胜_清华大学出版社习题答案习题答案[完美打印版]

exit(0); }

fprintf(fp,\ for( j=0;j

fprintf(fp,\ fprintf(fp,\ fclose(fp); return 0; }

void sort(struct stu student[]) {

struct stu temp; int i,j,k;

for(i=0; i

for(j=i+1; j

if(student[j].aver < student[k].aver)k=j; if(k!=i) {

temp=student[i];

student[i]=student[k]; student[k]=temp; } } }

2void writetofile(struct stu student[], char filename[],char mode[]){ FILE *fp; int i,j;

if ((fp=fopen(filename,mode))==NULL) {

printf(\ exit(0); }

for( i=0;i

fprintf(fp,\ for( j=0;j

fprintf(fp,\

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fprintf(fp,\ }

fclose(fp); }

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