package Schooltype SchoolModel struct {    Name         string    Address      string    StudentCount int    Is985        bool}type ISchoolDal interface {    GetList()    Add()    Delete()}

package Schooltype SchoolDal struct {}func (o *SchoolDal) GetList() []SchoolModel {    var result []SchoolModel    if (result == nil) {        println("切片是空的")    }    var t = SchoolModel{
   "江西财大", "南昌市", 1000, false}    var t2 = SchoolModel{
   "江西财大2", "南昌市", 1000, false}    result = append(result, t)    result = append(result, t2)    return result}func (o *SchoolDal) Add(m SchoolModel) {    println("这里是Add")}func (o *SchoolDal) Delete(m SchoolModel) {    println("这里是Delete")}

 访问权限：

1.类、方法首字段小写：仅仅同一个包访问

2.反之，大写：全项目访问

package mainimport "Study1/dto"func main() {    //可以访问dto.Student  ，首字母大写    var stu = dto.Student{
   "111","ligenyun",11}    println(stu.Sname)    //不可以访问dto.student  ，首字母写写    var stu2 = dto.student{
   "111","ligenyun",11}    println(stu2.sname)}

package dtotype Student struct {    Sno string    Sname string    Sage int}type student2 struct {    sno string    sname string    sage int}