1. type Student struct {
  2.     id int
  3.     name string
  4.     age int
  5. }
  1. // 顺序初始化，每个成员必须初始化
  2. var s1 Student = Student{1, "mike", 18}
  4. // 指定成员初始化，没有初始化的成员自动赋值
  5. s1 := Student{name: "mike" }
  1. var s Student
  2. s.id = 1
  3. s.name = "mike"
  1. p2 := new(Student)
  2. p2.id = 1
  3. p2.name = "mike"

匿名字段

  1. type Person struct {
  2.     name string
  3.     sex byte
  4.     age int
  5. }
  7. type Student struct {
  8.     Person
  9.     id int
  10.     addr string
  11. }
  13. func main() {
  14.     var s1 Student = Student{Person{"mike", 'm', 18}, 1, "bj"}
  16.     s2 := Student{Person{"mike", 'm', 18}, 1, "bj"}
  18.     s3 := Student{id: 1}
  19. }