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package main import ( "fmt" ) func recovery() { if r := recover(); r != nil { fmt.Println("recovered:", r) } } func sum(a int, b int) { defer recovery() fmt.Printf("%d + %d = %d\n", a, b, a+b) done := make(chan bool) go divide(a, b, done) <-done } func divide(a int, b int, done chan bool) { fmt.Printf("%d / %d = %d", a, b, a/b) done <- true } func main() { sum(5, 0) fmt.Println("normally returned from main") }
运行结果 :
正在执行...
