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.dll>
using namespace System;
using namespace System::Net;
using namespace System::Net::NetworkInformation;
using namespace System::Text;
// args[1] can be an IPaddress or host name.
int main()
{
array<String^>^args = Environment::GetCommandLineArgs();
Ping ^ pingSender = gcnew Ping;
PingOptions ^ options = gcnew 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";
array<Byte>^buffer = Encoding::ASCII->GetBytes( data );
int timeout = 120;
PingReply ^ reply = pingSender->Send( args[ 1 ], 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 );
}
}
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);
}
}
}
}
注解
如果值Status不是,则不应使用由或属性返回RoundtripTimeOptionsBuffer的值。Success 属性RoundtripTimeBuffer将返回零,属性Options将返回 null
。