int search_account(FILE *fp,int accountnum)//管理员调用模块函数
{
    int i =0;
    for(i = 0;i< cur_account-1;i++)
    {
        if(accountcollection[i].account == accountnum)
        {
            printf("账户：%d:\n",i+1);
            printf("账号:%d\n",accountcollection[i].account);
            printf("姓名:%s\n",accountcollection[i].name);
            printf("余额:%.2f\n",accountcollection[i].balance);

            return 1;
        }
    }
 return 0;
}