}

printf("\nPlease input ID which you want to del:"); scanf("%d",&i);getchar();

while((fread(&data,sizeof(data),1,fp))==1) {

j=atoi(data.xuehao); if(j==i) {

printf("Anykey will delet it.\n"); getch(); continue; }

fwrite(&data,sizeof(data),1,fp1); }

fclose(fp); fclose(fp1);

remove("s_score.txt");

rename("temp.txt","s_score.txt");

printf("Data delet was succesful!\n"); printf("Anykey will return to main."); getch(); }

main() {

while(1) {

clrscr();

printf("*************welcome to use student manage******************\n"); printf("*************************menu********************************\n"); printf("* ========================================================= * \n"); printf("* A>shuru B>xiugai * \n"); printf("* C>shanchu D>chazhao * \n"); printf("*E>xianshi F>exit * \n"); printf("* * \n");

printf("* --------------------------------------------------------- * \n"); printf(" Please input which you want(A-F):"); ch=getch(); switch(ch) {

case 'A':shuru();break; case 'B':xiugai(); break; case 'C':shanchu(); break;