w#include "mysyslib.h"

 ss* init(int Nums){
     ss* stu = (ss*)malloc(sizeof(ss));
     if(!stu) return NULL;

     stu->nums = 0;
     stu->student = (Student*)malloc(sizeof(Student)*Nums);
     if(!stu->student) return NULL;

     for(int i = 0; i < Nums; ++i){
         stu->student[i].id = (char*)malloc(sizeof(char)*6);
         stu->student[i].clas = (char*)malloc(sizeof(char)*3);
         stu->student[i].name = (char*)malloc(sizeof(char)*10);
     }
     return stu;
 }