Question

c#如何来判断本机与指定IP计算机是否相通

比如如何来判断本机与192.168.1.112这台计算机是否可以ping得通

Answer 1

我做了个例子 ，你要源码的话我可以给你源码
但我还是附上代码
try
{
Ping p = new Ping();

PingReply reply = p.Send(this.textBox1.Text);
//this.textBox.Text写上目标ip地址就行
if (reply.Status == IPStatus.Success)
{
MessageBox.Show("成功！");
}
else
{
MessageBox.Show("失败！");
}
}
catch (Exception ex)
{

MessageBox.Show(ex.Message);
}

Answer 2

根据ping的结果判断

单击开始、运行、输入CMD、然后输入
D:\>ping 100.1.0.13

Pinging 100.1.0.13 with 32 bytes of data:

Reply from 100.1.0.13: bytes=32 time<1ms TTL=128
Reply from 100.1.0.13: bytes=32 time<1ms TTL=128
Reply from 100.1.0.13: bytes=32 time<1ms TTL=128
Reply from 100.1.0.13: bytes=32 time<1ms TTL=128

Ping statistics for 100.1.0.13:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

以上的结果就是可以ping 通的
以下的结果就是ping 不通的

D:\>ping 100.1.0.185

Pinging 100.1.0.185 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 100.1.0.185:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

从ping的结果中可以大致判断对方机器的系统等。
详细可以用ping/all来了解。

Answer 3

调用ping命令来完成网络检测
//调用ping命令
private string[,] Ping(string [] ips)
{
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
int i = 0;
int lines = ips.Length;
string[,] pingResult= new [lines,2];
for(;i<lines;i++)
{
string pingrst = null;
p.Start();
p.StandardInput.WriteLine("ping -n 1 "+ips[i]);
p.StandardInput.WriteLine("exit");
string strRst = p.StandardOutput.ReadToEnd();

if(strRst.IndexOf("(0% loss)")!=-1)
{
pingrst = "连接";
}
else if( strRst.IndexOf("Destination host unreachable.")!=-1)
{
pingrst = "无法到达";
}
else if(strRst.IndexOf("Request timed out.")!=-1)
{
pingrst = "断开";
}
else
{
pingrst = "无法解析";
}
pingResult[i,0] = ips[i];
pingResult[i,1] = pingrst;
}
p.Close();
return pingResult;
}

调用系统的PING的程序.判断返回值