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C# code:
string hostname = "www.csdn.net";
IPAddress[] addresslist = Dns.GetHostAddresses(hostname);
foreach (IPAddress ipaddress in addresslist)
{
Console.WriteLine(ipaddress.ToString());
}
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string hostname = "www.csdn.net";
IPAddress[] addresslist = Dns.GetHostAddresses(hostname);
foreach (IPAddress ipaddress in ¡¡
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string hostname = TextBox1.Text;
System.Net.IPAddress[] addresslist = System.Net.Dns.GetHostAddresses(hostname);
foreach (System.Net.IPAddress ipaddress in addresslist)
{
TextBox2.Text=ipaddre
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