c语言课程设计___学生成绩管理系统(9)

mark_tot=english+math+computer; pos = 0;

while ((data[pos].mark_ave < mark_ave) && (pos < *len) ) pos ++;

for (i = *len-1; i >= pos; i--) data[i+1] = data[i]; data[pos].no = no;

strcpy(data[pos].name, name); data[pos].english = english; data[pos].math = math;

data[pos].Programming = computer; data[pos].mark_ave = mark_ave; data[pos].mark_tot = mark_tot; (*len)++; goto lab; }

/*-------------删除子程序--------------*/ void delete_item(STUDENT *data, int *len) {

int no, i, pos; lab: pos=0;

printf("%s\n", "输入需要删除的学生的学号，退出当前菜单请输入-1.");

scanf("%d", &no); if (no == -1) return;

while( (data[pos].no != no) && (pos < *len) ) pos = pos +1; if (pos >= *len) {

printf("%s\n", "未找到需要删除的学生"); goto lab; }

else {

for (i = pos+1;i < *len; i++) data[i-1] = data[i]; *len = *len -1; if (*len == 0) {

printf("%s\n", "没有任何记录，请按回车键返回."); getchar(); getchar(); return; }

goto lab; } }