if there's no result, don't print anything

ZhongLiuShi · Dec 19, 2019 · 31a4e6e · 31a4e6e
1 parent f50324f
commit 31a4e6e
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/main.go b/main.go
@@ -10,7 +10,11 @@ import (
 
 func worker(ip string, wg *sync.WaitGroup) {
 	addr, err := net.LookupAddr(ip)	
-    fmt.Println(ip, addr, err)
+	if err != nil{
+		wg.Done()
+		return
+	}
+    fmt.Println(ip, addr)
 	wg.Done()
 }