反映。Golang中的间接()函数及示例

// Golang program to illustrate
// reflect.Indirect() Function
package main
import (
    "fmt"
    "reflect"
)
// Main function
func main() {
     val1:= []int  {1, 2, 3, 4}             
     var val2 reflect.Value = reflect.ValueOf(&val1)
     fmt.Println("&val2 type : ", val2.Kind())
     // using the function
     indirectI := reflect.Indirect(val2)
     fmt.Println("indirectI  type : ", indirectI.Kind())
     fmt.Println("indirectI  value : ", indirectI)
}


&val2 type : ptr
indirectI type : slice
indirectI value : [1 2 3 4]


// Golang program to illustrate
// reflect.Indirect() Function
package main
import (
    "fmt"
    "reflect"
)
// Main function
func main() {
     var val1 []int               
     var val2 [3]string        
     var val3 = make(map[int]string) 
     var val4 reflect.Value = reflect.ValueOf(&val1)
     indirectI := reflect.Indirect(val4)
     fmt.Println("val1: ", indirectI.Kind())
     var val5 reflect.Value = reflect.ValueOf(&val2)
     indirectStr := reflect.Indirect(val5)
     fmt.Println("val2 type : ", indirectStr.Kind())
     var val6 reflect.Value = reflect.ValueOf(&val3)
     fmt.Println("&val3 type : ", val6.Kind())
     indirectM := reflect.Indirect(val6)
     fmt.Println("val3 type : ", indirectM.Kind())
}


val1: slice
val2 type : array
&val3 type : ptr
val3 type : map