gistfile1.go

package main

import "fmt"

func main() {
	var i int
	c := make(chan int)
	fmt.Scan(&i)

	go func() {
		defer func() {
			if err := recover(); err != nil {
				fmt.Printf("work failed: %v\n", err)
				c <- -1
			}
		}()

		fmt.Printf("i=%v\n", i)
		x := 1 / i
		fmt.Printf("x=%v\n", x)
		c <- x
	}()

	select {
	case m := <-c:
		fmt.Printf("msg=%v\n", m)
	}
}