我做一个公司职工信息管理的的作业，怎样删除某位员工的信息啊？ 怎样插入呢？ 例如：
struct date
{
    int year;
    int month;
    int day;
};
struct son
{
        int num;              
        char name[20];         
        char sex;            
        struct date birthday;     
        char partment[20];     
        char digree[20];      
        int income;            
}person[]={{1,"夏俊杰",'m',2008,8,8,"厕所","所长",1000},{2,"方振",'w',1111,11,11,"妇联","主任",1000}};
我应该怎样删除和插入呢？  在线等啊！！QQ 361521457