Go语言结构体struct之创建、初始化(十七)

  package main
  
  import "fmt"
  
  func main() {
      TestForStruct()
  }
  //定义一个Dog结构体
  type Dog struct {
      ID int
      Name string
      Age int
  }
  func TestForStruct()  {
      //方式一
      var dog Dog            //声明一个变量
      //赋值
      dog.ID = 1
      dog.Name = "didi"
      dog.Age = 3
      fmt.Println(dog)       //{1 didi 3}
      //方式二
      dog1 := Dog{ID: 1,Name: "Yay",Age: 2}
      fmt.Println(dog1)       //{1 Yay 2}
      //方式三
      dog2 := new(Dog)
      dog2.ID = 1
      dog2.Name = "GG"
      dog2.Age = 5
      fmt.Println(dog2)       //&{1 GG 5}   返回指针类型的
  }