encoding/json demo

package main  
  
import "encoding/json"  
  
type House struct {  
   Name string `json:"name"`  
   Age  int    `json:"age"`  
}  
  
func main() {  
   house := House{  
      Name: "sim",  
      Age:  100,  
   }  
   jsonhouse, err := json.Marshal(&house)  
   if err != nil {  
      println("no")  
   }  
   println(string(jsonhouse))  
}