PingReply.Status 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
获取发送 Internet 控制消息协议 (ICMP) 回送请求并接收相应 ICMP 回送答复消息的尝试的状态。
public:
property System::Net::NetworkInformation::IPStatus Status { System::Net::NetworkInformation::IPStatus get(); };
public System.Net.NetworkInformation.IPStatus Status { get; }
member this.Status : System.Net.NetworkInformation.IPStatus
Public ReadOnly Property Status As IPStatus
属性值
指示请求结果的 IPStatus 值。
示例
下面的代码示例演示如何使用 Ping 类同步发送 ICMP 回显请求并显示响应。
using System;
using System.Net;
using System.Net.NetworkInformation;
using System.Text;
namespace Examples.System.Net.NetworkInformation.PingTest
{
public class PingExample
{
// args[0] can be an IPaddress or host name.
public static void Main (string[] args)
{
Ping pingSender = new Ping ();
PingOptions options = new PingOptions ();
// Use the default Ttl value which is 128,
// but change the fragmentation behavior.
options.DontFragment = true;
// Create a buffer of 32 bytes of data to be transmitted.
string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
byte[] buffer = Encoding.ASCII.GetBytes (data);
int timeout = 120;
PingReply reply = pingSender.Send (args[0], timeout, buffer, options);
if (reply.Status == IPStatus.Success)
{
Console.WriteLine ("Address: {0}", reply.Address.ToString ());
Console.WriteLine ("RoundTrip time: {0}", reply.RoundtripTime);
Console.WriteLine ("Time to live: {0}", reply.Options.Ttl);
Console.WriteLine ("Don't fragment: {0}", reply.Options.DontFragment);
Console.WriteLine ("Buffer size: {0}", reply.Buffer.Length);
}
}
}
}
open System.Net.NetworkInformation
open System.Text
// args[0] can be an IPaddress or host name.
[<EntryPoint>]
let main args =
let pingSender = new Ping()
// Use the default Ttl value which is 128,
// but change the fragmentation behavior.
let options = PingOptions()
options.DontFragment <- true
// Create a buffer of 32 bytes of data to be transmitted.
let data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
let buffer = Encoding.ASCII.GetBytes data
let timeout = 120
let reply: PingReply = pingSender.Send(args.[0], timeout, buffer, options)
match reply.Status with
| IPStatus.Success ->
printfn "Address: %O" reply.Address
printfn "RoundTrip time: %d" reply.RoundtripTime
printfn "Time to live: %d" reply.Options.Ttl
printfn "Don't fragment: %b" reply.Options.DontFragment
printfn "Buffer size: %d" reply.Buffer.Length
0
| _ ->
eprintfn "Error sending ping: %O" reply
eprintfn "Error was: %O" reply.Status
1
注解
如果 的值Status不是 Success,则不应使用 、 RoundtripTimeOptions 或 Buffer 属性返回的值。
RoundtripTime和 Buffer 属性将返回零,属性Options将返回 null
。