添加：增加一个或几个人通信录信息。 删除：删除已输入的通信录信息。 查询：根据输入的姓名、学号、QQ、email查找通信录信息。 修改：根据输入的姓名修改通信录信息。 显示：输出所有通信录信息。 -Add: increase in one or several persons were recorded in the information communication. Delete: delete the address book information input. In