var timeout int64
var size int
var neverstop bool
flag.Int64Var(&timeout, "w", 1000, "等待每次回复的超时时间...flag.BoolVar(&neverstop, "t", false, "Ping 指定的主机,直到停止。")...255)
conn, err = net.DialTimeout("ip:icmp", host, time.Duration(timeout*1000*1000))
checkError...(sum & 0xffff)
sum += (sum >> 16)
var answer uint16 = uint16(^sum)
return answer
}
func checkError...%d,丢失 = %d (%d%% 丢失),\n", sendN, recvN, lostN, int(lostN*100/sendN))
fmt.Println("往返行程的估计时间(以毫秒为单位