go chan传递接口类型

package main

import (
	"fmt"
	"time"
)

type Cat struct {
	Name string

}
func main() {

	var ch chan interface{}
	ch = make(chan interface{},2)

	cat1 := Cat{Name: "hell"}
	ch <- cat1
	a := <- ch

	// go类型断言
	cat,ok := a.(Cat)
	fmt.Println(ok)
	fmt.Println(cat.Name)
	
	fmt.Println("main")
	time.Sleep(time.Second)
}