Ping test get output

cmd/ping/main.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"log"
+	"os/exec"
+)
+
+func main() {
+	cmd := exec.Command("ping", "qiongbi.net", "-c5")
+	output, err := cmd.Output()
+	log.Println("output:", string(output))
+	log.Println("err:", err)
+}